phd. meaning

• What is a PhD?

Written by Mark Bennett

A PhD is a doctoral research degree and the highest level of academic qualification you can achieve. The degree normally takes between three and four years of full-time work towards a thesis offering an original contribution to your subject.

This page explains what a PhD is, what it involves and what you need to know if you’re considering applying for a PhD research project , or enrolling on a doctoral programme .

On this page

The meaning of a phd.

The PhD can take on something of a mythic status. Are they only for geniuses? Do you have to discover something incredible? Does the qualification make you an academic? And are higher research degrees just for people who want to be academics?

Even the full title, ‘Doctor of Philosophy’, has a somewhat mysterious ring to it. Do you become a doctor? Yes, but not that kind of doctor. Do you have to study Philosophy? No (not unless you want to) .

So, before going any further, let's explain what the term 'PhD' actually means and what defines a doctorate.

What does PhD stand for?

PhD stands for Doctor of Philosophy. This is one of the highest level academic degrees that can be awarded. PhD is an abbreviation of the Latin term (Ph)ilosophiae (D)octor. Traditionally the term ‘philosophy’ does not refer to the subject but its original Greek meaning which roughly translates to ‘lover of wisdom’.

What is a doctorate?

A doctorate is any qualification that awards a doctoral degree. In order to qualify for one you need to produce advanced work that makes a significant new contribution to knowledge in your field. Doing so earns you the title 'Doctor' – hence the name.

So, is a PhD different to a doctorate? No. A PhD is a type of doctorate .

The PhD is the most common type of doctorate and is awarded in almost all subjects at universities around the world. Other doctorates tend to be more specialised or for more practical and professional projects.

Essentially, all PhDs are doctorates, but not all doctorates are PhDs.

Do you need a Masters to get a PhD?

Not necessarily. It's common for students in Arts and the Humanities to complete an MA (Master of Arts) before starting a PhD in order to acquire research experience and techniques. Students in Science, Technology, Engineering and Mathematics (STEM) don't always need an MS/MSc (Master of Science) to do a PhD as you'll gain training in lab techniques and other skills during your undergraduate degree.

Whether a Masters is a requirement for a PhD also varies by country. Australian PhDs may require a Masters as the equivalent of their own 'honours year' (where students work on research). US PhD programmes often include a Masters.

We have a whole guide dedicated to helping you decide whether a PhD without a Masters is the right route for you.

The origin of the PhD

Despite its name, the PhD isn't actually an Ancient Greek degree. Instead it's a much more recent development. The PhD as we know it was developed in nineteenth-century Germany, alongside the modern research university.

Higher education had traditionally focussed on mastery of an existing body of scholarship and the highest academic rank available was, appropriately enough, a Masters degree.

As the focus shifted more onto the production of new knowledge and ideas, the PhD degree was brought in to recognise those who demonstrated the necessary skills and expertise.

The PhD process – what's required to get a PhD?

The typical length of a PhD is three to four years full-time, or five to six years part-time.

Unlike most Masters courses (or all undergraduate programmes), a PhD is a pure research degree. But that doesn’t mean you’ll just spend years locked away in a library or laboratory. In fact, the modern PhD is a diverse and varied qualification with many different components.

Whereas the second or third year of a taught degree look quite a lot like the first (with more modules and coursework at a higher level) a PhD moves through a series of stages.

A typical PhD normally involves:

• Carrying out a literature review (a survey of current scholarship in your field).
• Conducting original research and collecting your results .
• Producing a thesis that presents your conclusions.
• Writing up your thesis and submitting it as a dissertation .
• Defending your thesis in an oral viva voce exam.

These stages vary a little between subjects and universities, but they tend to fall into the same sequence over the three years of a typical full-time PhD.

The first year of a PhD

The beginning of a PhD is all about finding your feet as a researcher and getting a solid grounding in the current scholarship that relates to your topic.

You’ll have initial meetings with your supervisor and discuss a plan of action based on your research proposal.

The first step in this will almost certainly be carrying out your literature review . With the guidance of your supervisor you’ll begin surveying and evaluating existing scholarship. This will help situate your research and ensure your work is original.

Your literature review will provide a logical jumping off point for the beginning of your own research and the gathering of results . This could involve designing and implementing experiments, or getting stuck into a pile of primary sources.

The year may end with an MPhil upgrade . This occurs when PhD students are initially registered for an MPhil degree and then ‘upgraded’ to PhD candidates upon making sufficient progress. You’ll submit material from your literature review, or a draft of your research findings and discuss these with members of your department in an upgrade exam . All being well, you’ll then continue with your research as a PhD student.

PhDs in other countries

The information on the page is based on the UK. Most countries follow a similar format, but there are some differences. In the USA , for example, PhD students complete reading assignments and examinations before beginning their research. You can find out more in our guides to PhD study around the world .

The second year of a PhD

Your second year will probably be when you do most of your core research. The process for this will vary depending on your field, but your main focus will be on gathering results from experiments, archival research, surveys or other means.

As your research develops, so will the thesis (or argument) you base upon it. You may even begin writing up chapters or other pieces that will eventually form part of your dissertation .

You’ll still be having regular meetings with your supervisor. They’ll check your progress, provide feedback on your ideas and probably read any drafts your produce.

The second year is also an important stage for your development as a scholar. You’ll be well versed in current research and have begun to collect some important data or develop insights of your own. But you won’t yet be faced with the demanding and time-intensive task of finalising your dissertation.

So, this part of your PhD is a perfect time to think about presenting your work at academic conferences , gaining teaching experience or perhaps even selecting some material for publication in an academic journal. You can read more about these kinds of activities below.

The third year of a PhD

The third year of a PhD is sometimes referred to as the writing up phase.

Traditionally, this is the final part of your doctorate, during which your main task will be pulling together your results and honing your thesis into a dissertation .

In reality, it’s not always as simple as that.

It’s not uncommon for final year PhD students to still be fine-tuning experiments, collecting results or chasing up a few extra sources. This is particularly likely if you spend part of your second year focussing on professional development.

In fact, some students actually take all or part of a fourth year to finalise their dissertation. Whether you are able to do this will depend on the terms of your enrolment – and perhaps your PhD funding .

Eventually though, you are going to be faced with writing up your thesis and submitting your dissertation.

Your supervisor will be very involved in this process. They’ll read through your final draft and let you know when they think your PhD is ready for submission.

All that’s left then is your final viva voce oral exam. This is a formal discussion and defence of your thesis involving at least one internal and external examiner. It’s normally the only assessment procedure for a PhD. Once you’ve passed, you’ve done it!

Looking for more information about the stages of a PhD?

How do you go about completing a literature review? What's it like to do PhD research? And what actually happens at an MPhil upgrade? You can find out more in our detailed guide to the PhD journey .

Doing a PhD – what's it actually like?

You can think of the ‘stages’ outlined above as the basic ‘roadmap’ for a PhD, but the actual ‘journey’ you’ll take as a research student involves a lot of other sights, a few optional destinations and at least one very important fellow passenger.

Carrying out research

Unsurprisingly, you’ll spend most of your time as a PhD researcher… researching your PhD. But this can involve a surprisingly wide range of activities.

The classic image of a student working away in the lab, or sitting with a pile of books in the library is true some of the time – particularly when you’re monitoring experiments or conducting your literature review.

Your PhD can take you much further afield though. You may find yourself visiting archives or facilities to examine their data or look at rare source materials. You could even have the opportunity to spend an extended period ‘in residence’ at a research centre or other institution beyond your university.

Research is also far from being a solitary activity. You’ll have regular discussions with your supervisor (see below) but you may also work with other students from time to time.

This is particularly likely if you’re part of a larger laboratory or workshop group studying the same broad area. But it’s also common to collaborate with students whose projects are more individual. You might work on shorter projects of joint interest, or be part of teams organising events and presentations.

Many universities also run regular internal presentation and discussion groups – a perfect way to get to know other PhD students in your department and offer feedback on each other’s work in progress.

Working with your supervisor

All PhD projects are completed with the guidance of at least one academic supervisor . They will be your main point of contact and support throughout the PhD.

Your supervisor will be an expert in your general area of research, but they won’t have researched on your exact topic before (if they had, your project wouldn’t be original enough for a PhD).

As such, it’s better to think of your supervisor as a mentor, rather than a teacher.

As a PhD student you’re now an independent and original scholar, pushing the boundaries of your field beyond what is currently known (and taught) about it. You’re doing all of this for the first time, of course. But your supervisor isn’t.

They’ll know what’s involved in managing an advanced research project over three years (or more). They’ll know how best to succeed, but they’ll also know what can go wrong and how to spot the warning signs before it does.

Perhaps most importantly, they’ll be someone with the time and expertise to listen to your ideas and help provide feedback and encouragement as you develop your thesis.

Exact supervision arrangements vary between universities and between projects:

• In Science and Technology projects it’s common for a supervisor to be the lead investigator on a wider research project, with responsibility for a laboratory or workshop that includes several PhD students and other researchers.
• In Arts and Humanities subjects, a supervisor’s research is more separate from their students’. They may supervise more than one PhD at a time, but each project is essentially separate.

It’s also becoming increasingly common for PhD students to have two (or more) supervisors. The first is usually responsible for guiding your academic research whilst the second is more concerned with the administration of your PhD – ensuring you complete any necessary training and stay on track with your project’s timetable.

However you’re supervised, you’ll have regular meetings to discuss work and check your progress. Your supervisor will also provide feedback on work during your PhD and will play an important role as you near completion: reading your final dissertation draft, helping you select an external examiner and (hopefully) taking you out for a celebratory drink afterwards!

Professional development, networking and communication

Traditionally, the PhD has been viewed as a training process, preparing students for careers in academic research.

As such, it often includes opportunities to pick up additional skills and experiences that are an important part of a scholarly CV. Academics don’t just do research after all. They also teach students, administrate departments – and supervise PhDs.

The modern PhD is also viewed as a more flexible qualification. Not all doctoral graduates end up working in higher education. Many follow alternative careers that are either related to their subject of specialism or draw upon the advanced research skills their PhD has developed.

PhD programmes have begun to reflect this. Many now emphasise transferrable skills or include specific training units designed to help students communicate and apply their research beyond the university.

What all of this means is that very few PhD experiences are just about researching and writing up a thesis.

The likelihood is that you’ll also do some (or all) of the following during your PhD:

The work is usually paid and is increasingly accompanied by formal training and evaluation.

Conference presentation

As a PhD student you’ll be at the cutting edge of your field, doing original research and producing new results. This means that your work will be interest to other scholars and that your results could be worth presenting at academic conferences .

Doing this is very worthwhile, whatever your career plans. You’ll develop transferrable skills in public speaking and presenting, gain feedback on your results and begin to be recognised as an expert in your area.

Conferences are also great places to network with other students and academics.

Publication

As well as presenting your research, you may also have the opportunity to publish work in academic journals, books, or other media. This can be a challenging process.

Your work will be judged according to the same high standards as any other scholar’s and will normally go through extensive peer review processes. But it’s also highly rewarding. Seeing your work ‘in print’ is an incredible validation of your PhD research and a definite boost to your academic CV.

Public engagement and communication

Academic work may be associated with the myth of the ‘ivory tower’ – an insular community of experts focussing on obscure topics of little interest outside the university. But this is far from the case. More and more emphasis is being placed on the ‘impact’ of research and its wider benefits to the public – with funding decisions being made accordingly.

Thankfully, there are plenty of opportunities to try your hand at public engagement as a PhD student. Universities are often involved in local events and initiatives to communicate the benefits of their research, ranging from workshops in local schools to public lectures and presentations.

Some PhD programmes include structured training in order to help students with activities such as the above. Your supervisor may also be able to help by identifying suitable conferences and public engagement opportunities, or by involving you in appropriate university events and public engagement initiatives.

These experiences will be an important part of your development as a researchers - and will enhance the value of your PhD regardless of your career plans.

What is a PhD for – and who should study one?

So, you know what a PhD actually is, what’s involved in completing one and what you might get up to whilst you do. That just leaves one final question: should you do a PhD?

Unfortunately, it’s not a question we can answer for you.

A PhD is difficult and uniquely challenging. It requires at least three years of hard work and dedication after you’ve already completed an undergraduate degree (and probably a Masters degree too).

You’ll need to support yourself during those years and, whilst you will be building up an impressive set of skills, you won’t be directly progressing in a career.

But a PhD is also immensely rewarding. It’s your chance to make a genuine contribution to the sum of human knowledge and produce work that other researchers can (and will) build on in future. However obscure your topic feels, there’s really no such thing as a useless PhD.

A PhD is also something to be incredibly proud of. A proportionately tiny number of people go on to do academic work at this level. Whatever you end up doing after your doctorate you’ll have an impressive qualification – and a title to match. What’s more, non-academic careers and professions are increasingly recognising the unique skills and experience a PhD brings.

Other PhDs - do degree titles matter?

The PhD is the oldest and most common form of higher research degree, but a few alternatives are available. Some, such as the DPhil are essentially identical to a PhD. Others, such as the Professional Doctorate or DBA are slightly different. You can find out more in our guide to types of PhD .

Is a PhD for me?

There’s more advice on the value of a PhD – and good reasons for studying one – elsewhere in this section. But the following are some quick tips if you’re just beginning to consider a PhD.

Speak to your lecturers / tutors

The best people to ask about PhD study are people who’ve earned one. Ask staff at your current or previous university about their experience of doctoral research – what they enjoyed, what they didn’t and what their tips might be.

If you’re considering a PhD for an academic career, ask about that too. Are job prospects good in your field? And what’s it really like to work at a university?

Speak to current PhD students

Want to know what it’s like studying a PhD right now? Or what it’s like doing research at a particular university? Ask someone who knows.

Current PhD students were just like you a year or two ago and most will be happy to answer questions.

If you can’t get in touch with any students ‘face to face’, pop over to the Postgraduate Forum – you’ll find plenty of students there who are happy to chat about postgraduate research.

Take a look at advertised projects and programmes

This may seem like a strange suggestion. After all, you’re only going to study one PhD, so what’s the point of reading about lots of others?

Well, looking at the details of different PhD projects is a great way to get a general sense of what PhD research is like. You’ll see what different PhDs tend to have in common and what kinds of unique opportunity might be available to you.

And, with thousands of PhDs in our database , you’re already in a great place to start.

Read our other advice articles

Finally, you can also check out some of the other advice on the FindAPhD website. We’ve looked at some good (and bad) reasons for studying a PhD as well as the value of a doctorate to different career paths.

More generally, you can read our in-depth look at a typical PhD journey , or find out more about specific aspects of doctoral study such as working with a supervisor or writing your dissertation .

We add new articles all the time – the best way to stay up to date is by signing up for our free PhD opportunity newsletter .

Ready to find your PhD?

Head on over to our PhD search listings to learn what opportunities are on offer within your discipline.

Our postgrad newsletter shares courses, funding news, stories and advice

You may also like....

What happens during a typical PhD, and when? We've summarised the main milestones of a doctoral research journey.

The PhD thesis is the most important part of a doctoral degree. This page will introduce you to what you need to know about the PhD dissertation.

This page will give you an idea of what to expect from your routine as a PhD student, explaining how your daily life will look at you progress through a doctoral degree.

PhD fees can vary based on subject, university and location. Use our guide to find out the PhD fees in the UK and other destinations, as well as doctoral living costs.

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doctor of philosophy

Definition of doctor of philosophy

Word history.

1651, in the meaning defined above

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More than 54,000 students earned doctoral degrees in 2016, the latest year for which figures are available, a 30 percent increase since 2000, according to the  National Science Foundation . A Ph.D., also called a doctorate, is a "Doctor of Philosophy" degree, which is a misleading moniker because most Ph.D. holders are not philosophers. The term for this increasingly popular degree derives from the original meaning of the word "philosophy," which comes from the ancient Greek word  philosophia , meaning "love of wisdom."

What Is a Ph.D.?

In that sense, the term "Ph.D." is accurate, because the degree has historically been a license to teach, but it also signifies that the holder is an "authority, in full command of (a given) subject right up to the boundaries of current knowledge, and able to extend them," says  FindAPhD , an online Ph.D. database. Earning a Ph.D. requires a hefty financial and time commitment— $35,000 to $60,000  and two to eight years—as well as research, creating a thesis or dissertation, and possibly some teaching duties.

Deciding to pursue a Ph.D. can represent a major life choice. Doctoral candidates require additional schooling after completing a master's program to earn their Ph.D.: They must complete additional coursework, pass comprehensive exams , and complete an independent dissertation in their field. Once completed, though, a doctoral degree—often called a "terminal degree"—can open doors for the Ph.D.holder, especially in academia but also in business.

Core Courses and Electives

To obtain a Ph.D., you need to take a group of core courses as well as electives, totaling about 60 to 62 "hours," which are roughly the equivalent of units at the bachelor's degree level. For example, Washington State University offers a  Ph.D. in crop science . Core courses, which make up about 18 hours, include such subjects as introduction to population genetics, plant transmission genetics, and plant breeding.

Additionally, the student must make up the remaining required hours through electives. The  Harvard T.H. Chan School of Public Health  offers a doctoral degree in Biological Sciences in Public Health. After core courses such as laboratory rotations, biological sciences seminars, and core principles of biostatistics and epidemiology, the Ph.D. candidate is required to take electives in related fields such as advanced respiratory physiology, advanced respiratory physiology, and ecological and epidemiological control of parasitic diseases. Degree-granting institutions across the board want to ensure that those who earn Ph.D.s have broad knowledge in their chosen field.

Thesis or Dissertation and Research

A Ph.D. also requires students to complete a large scholarly project known as a  dissertation , a research report—usually 60-plus pages—which signifies that they are able to make significant independent contributions to their chosen field of study. Students take on the project, also known as a  doctoral thesis , after completing the core and elective coursework and passing a  comprehensive examination . Through the dissertation, the student is expected to make a new and creative contribution to a field of study and to demonstrate her expertise.

According to the Association of American Medical Colleges, for example, a strong medical dissertation relies heavily on the creation of a specific hypothesis that can be either disproved or supported by data collected through independent student research. Further, it must also contain several key elements starting with an introduction to the problem statement, conceptual framework, and research question as well as references to literature already published on the topic. Students must show that the  dissertation  is relevant, provides new insight into the chosen field, and is a topic that they can research independently.

Financial Aid and Teaching

There are several ways to pay for a doctoral degree: scholarships, grants, fellowships, and government loans, as well as teaching.  GoGrad , a graduate school information website, provides such examples as the:

• Science, Mathematics, and Research for Transformation (SMART) Scholarship for Service Program, which provides full tuition and an annual stipend of $25,000 to $38,000.
• National Defense Science and Engineering Graduate Fellowship, a three-year graduate fellowship that is designed to support doctoral students across 15 engineering disciplines
• National Science Foundation Graduate Research Fellowship Program, a three-year program that provides an annual stipend of $34,000 and a $12,000 cost-of-education allowance for tuition and fees

As it does for bachelor's and master's degrees, the federal government also offers several  loan programs  to help students finance their Ph.D. studies. You generally apply for these loans by filling out the free application for federal student aid ( FAFSA ). Students planning to go into teaching after obtaining their doctoral degrees often also supplement their income by teaching undergraduate classes at the schools where they are studying. The University of California, Riverside, for example, offers a "teaching award"—essentially a stipend applied toward tuition costs—for Ph.D. candidates in English who teach undergraduate, beginning-level, English courses

Jobs and Opportunities for Ph.D. Holders

Education accounts for a large percentage doctoral awards, with elementary education, curriculum and instruction, educational leadership and administration, special education, and counselor education/ school counseling topping the list. Most universities in the United States require a Ph.D. for candidates who seek teaching positions, regardless of the department.

Many Ph.D. candidates seek the degree, however, to boost their current salaries. For example, a health, sports, and fitness educator at a community college would realize a bump in annual pay for obtaining a Ph.D. The same holds for educational administrators. Most such positions require only a master's degree, but obtaining a Ph.D. generally leads to an annual stipend that school districts add to the annual salary. That same health and fitness instructor at a community college could also move on from a teaching position and become a dean at a community college—a position that requires a Ph.D.—boosting his pay to  $120,000 to $160,000  a year or more.

So, the opportunities for a doctoral degree holder are wide and varied, but the cost and commitment required are significant. Most experts say you should know your future career plans before you make the commitment. If you know what you want to get out of the degree, then the years of required study and sleepless nights may well be worth the investment.

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What is a PhD?

PhD stands for Doctor of Philosophy and is considered the highest postgraduate achievement you can earn. To complete a doctorate you must produce significant and original research. You’ll develop critical knowledge and understanding of a particular research area. 

A PhD is a doctoral degree with an academic focus. Under appropriate academic supervision, you’ll develop a significant, original piece of research, usually equivalent to 70,000 to 100,000 words.

Professional doctorate

While a PhD focuses on academic research, a professional doctorate makes a significant and original contribution to furthering professional practice. A professional doctorate consists of coursework and a thesis of between 70,000 and 100,000 words.

A new way to complete your PhD, that is unique to Swinburne. You will complete your PhD as part of a team of research students, from across a range of disciplines, to work collaboratively on a broad challenge identified by a partner. Each team member will focus on a different aspect of the problem. Your team might look at a new or developing innovation, with individual projects focused on areas such as:

• new technology
• challenges in community acceptance
• social impact
• new legal or regulatory frameworks
• ethical issues.

You’ll undertake research at the university as well as spending time immersed in the work environment of your industry partner. Through this, you'll simultaneously grow your knowledge of communication, leadership and business as well as develop your research skills. You’ll see first-hand the significance and impact your work can have.

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Meaning of PhD in English

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• associate's degree
• baccalaureate
• do a degree
• Doctor of Medicine
• doctorate in something
• Master of Arts
• Master of Science
• Master's degree
• Postgraduate Certificate in Education
• second degree
• summa cum laude

Ph.D. | Intermediate English

Translations of phd.

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delaying tactics

actions that are intended to make something happen more slowly, in order to win an advantage

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Definition of PhD noun from the Oxford Advanced Learner's Dictionary

• to do/have/be a PhD
• Anne Thomas, PhD
• acquire/​get/​lack (an) education/​training/ (British English) (some) qualifications
• receive/​provide somebody with training/​tuition
• develop/​design/​plan a curriculum/ (especially British English) course/ (North American English) program/​syllabus
• give/​go to/​attend a class/​lesson/​lecture/​seminar
• hold/​run/​conduct a class/​seminar/​workshop
• sign up for/​take a course/​classes/​lessons
• go to/​start preschool/​kindergarten/​nursery school
• be in (North American English) the first, second, etc. grade/ (British English) year 1, 2. etc. (at school)
• study/​take/​drop history/​chemistry/​German, etc.
• (British English) leave/​finish/​drop out of/ (North American English) quit school
• (North American English) graduate high school/​college
• be the victim/​target of bullying
• (British English) play truant from/ (both British English, informal) bunk off/​skive off school (= not go to school when you should)
• (both especially North American English) skip/​cut class/​school
• (British English) cheat in/ (North American English) cheat on an exam/​a test
• get/​be given a detention (for doing something)
• be expelled from/​be suspended from school
• do your homework/ (British English) revision/​a project on something
• work on/​write/​do/​submit an essay/​a dissertation/​a thesis/​an assignment/ (North American English) a paper
• finish/​complete your dissertation/​thesis/​studies/​coursework
• hand in/ (North American English) turn in your homework/​essay/​assignment/​paper
• study/​prepare/ (British English) revise/ (North American English) review/ (North American English, informal) cram for a test/​an exam
• take/ (both British English) do/​sit a test/​an exam
• (especially British English) mark/ (especially North American English) grade homework/​a test
• (British English) do well in/ (North American English) do well on/ (especially North American English, informal) ace a test/​an exam
• pass/​fail/ (especially North American English, informal) flunk a test/​an exam/​a class/​a course/​a subject
• apply to/​get into/​go to/​start college/ (British English) university
• leave/​graduate from law school/​college/ (British English) university (with a degree in computer science)
• study for/​take/ (British English) do/​complete a law degree/​a degree in physics
• (both North American English) major/​minor in biology/​philosophy
• earn/​receive/​be awarded/​get/​have/​hold a master’s degree/​a bachelor’s degree/​a PhD in economics
• dissertation

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“M.D.” vs. “Ph.D.” vs. “Dr.”: Are They Synonyms?

Quick: when you hear the word doctor , what do you picture?

Most would probably describe someone in a white lab coat with a stethoscope hanging around their neck or someone in medical scrubs—someone you would seek out if you have a deep cut that needed stitches.

That word doctor , however, is a title assigned to many who don’t come close to that description, many of whom you wouldn’t want stitching up that cut. Take your English professor, for instance. No offense, Dr. Barrett. 

It can all be a bit confusing, which is why it’s important to know who and why someone might be called a doctor , as well as what all those initials and abbreviations after their name mean. Here we break it all down.

What does Dr. mean?

Let’s start with doctor or D r . for short. While the first definition of the word is “ a person licensed to practice medicine,” that doesn’t mean you want to take medical advice from anyone who calls themselves a doctor . There are many looser definitions of the word that follow and, frankly, make things a bit confusing.

For example, the third definition is older slang for a “cook, as at a camp or on a ship,” while the seventh entry is “an eminent scholar and teacher.” Bugs Bunny didn’t help matters either by plying anyone and everyone with his famous greeting,“What’s up, doc?” 

The term doctor can be traced back to the late 1200s, and it stems from a Latin word meaning “to teach.” It wasn’t used to describe a licensed medical practitioner until about 1400, and it wasn’t used as such with regularity until the late 1600s. It replaced the former word used for medical doctors— leech , which is now considered archaic. 

WATCH: When Did The Word "Doctor" Become Medical?

Physician vs. doctor : are these synonyms.

While the term physician is a synonym for doctor , it’s typically used to refer to those who practice general medicine rather than those who perform surgery, aka surgeons . 

A quack , on the other hand, is defined as “ a fraudulent or ignorant pretender to medical skill.”

What does M.D. mean?

Moving on to initials that carry more weight than a nod from Bugs, let’s look at M.D.s .

M.D. , which can be used with or without the periods ( M.D. or MD )  is the designation for a medical doctor. This is earned by attending medical school (typically a four-year program after completing at least one undergraduate degree, plus a residency program), and learning to diagnose patients’ symptoms and offer treatment. 

The initials M and D stem from the Latin title  Medicīnae Doctor. There are many different types of doctors, with different specialties, but if you have a physical ailment, visiting a doctor with the initials M.D. is a good place to start.

Specialty doctors may add even more initials to their title, such as DCN (doctor of clinical nutrition), DDS (doctor of dental surgery), or countless others they acquire with additional training. To make things even more confusing, some may add abbreviations from medical associations they belong to, such as FAAEM (Fellow of the American Academy of Emergency Medicine). 

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What does Ph.D. mean?

As for Ph.D. , this stands for “doctor of philosophy.” It stems from the Latin term Philosophiae Doctor.

You can get a Ph.D. in any number of subjects, from anthropology to mythological studies. It’s not an easy feat, however, as to earn one, you must do original research and write a dissertation . 

Ph.D. vs. M.D .: are these synonyms?

There are two big differences between Ph.D. s and M.D .s. When it comes to medicine, M.D.s can prescribe medications, and Ph.D.s can’t. And yes, it’s possible to be both an M.D. and a Ph.D. In fact, some med schools offer programs in which you can achieve both simultaneously. 

You can also get a professional doctorate degree in a number of fields. For example, you might receive a doctorate of education, an  Ed.D . 

So, in a nutshell, both M.D.s and Ph.Ds can be referred to as doctors . If you’re looking for someone to treat what ails you physically, then you want at least an M.D. following their name. If you want to dig deep into a subject and get advice from someone who has done their own research and who likely knows the latest and greatest developments in a particular area, then you’re probably looking for a Ph.D. And if someone has both, even better—depending on your needs, it may be just what the doctor ordered.

Want more synonyms? Get Thesaurus.com’s sizzling synonyms right in your inbox! 

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• DPhil vs PhD – Differences Explained
• Types of Doctorates

DPhil vs PhD – What Are the Differences?

There is a common misconception that a DPhil and PhD are two different degrees. This is not the case.

The abbreviations ‘PhD’ and ‘DPhil’ both relate to the same academic qualification – a Doctor of Philosophy. A  Doctor of Philosophy is a professional research qualification usually undertaken after a Master’s or Bachelor’s degree. It’s awarded to students who successfully undertake a novel research project and usually involves the production and defence of a thesis during an oral examination.

Whilst both abbreviations refer to the same qualification, ‘PhD’ is far more common and well known compared to ‘DPhil’. In fact, it’s likely that most doctoral students located outside of the UK have never even stumbled upon the abbreviation ‘DPhil’ before!

The reason for this is that ‘DPhil’ is a British abbreviation and is only currently used by a handful of UK universities such as Oxford, and occasionally, Sussex and York. While almost all UK universities adopt the term ‘PhD’, the University of Oxford still uses ‘DPhil’ as you can see on their admissions page . As a result, almost all doctorate students graduating today do so with ‘PhD‘ written on their official manuscript.

Are There Any Differences in Funding, Eligibility Requirements or Duration?

In short, no.

As ‘DPhil’ and ‘PhD’ both refer to the same qualification, a ‘Doctor of Philosophy’, there are no differences in programme between them. This is true regardless of whether you’re a UK/EU or international student.

With respect to entry requirements, both will require graduate students to possess a relevant Master’s degree (or a very strong Bachelor’s degree), have the same funding opportunities attached to them and take approximately 3 to 4 years to complete if studied full-time.

There are no additional costs associated with a DPhil compared to a PhD in Philosophy, and external funding sources within the UK are the same.

Potential DPhil Concerns

In the past, several current and post-doctoral students have expressed concerns about whether they will be at a disadvantage due to having ‘DPhil’ on their official degree manuscript as opposed to ‘PhD’.

In almost all cases, these concerns have arisen when an individual is contemplating moving abroad. The reason for this is that the abbreviation ‘DPhil’ is not always as well understood in countries outside the United Kingdom. For example, a recent post-doctoral student once shared with us how she spent two days going back and forth with a potential US employer while trying to explain that her degree is the same qualification as a PhD. Unfortunately, this doesn’t seem to be an isolated event given the number of stories and personal anecdotes available through various post-doctoral forums.

However, in all the above cases, the affected individuals were able to address the employer’s confusion once they explained the difference in the abbreviation system.

Therefore, while obtaining a Doctor of Philosophy which has ‘DPhil’ written on its official manuscript may raise a few questions, it’s not a factor that you should be concerned about.

To summarise, ‘DPhil’ and ‘PhD’ both correspond to a ‘Doctor of Philosophy’. Apart from the differences in abbreviation convention, both degrees are the same higher education qualification.

How Long is a DPhil?

Just like a PhD, a DPhil typically takes 3 to 4 years of full time study. This usually comprises of three stages:

• Research, where the DPhil student carries out a literature review, providing critique on a wide range of sources, before carrying out their own research.
• Thesis, where the student writes up their research project in a single document which outlines the importance of the project, methodology, findings and conclusions.
• Viva Voce, the final step before coming a Doctorate of Philosophy. In this stage the DPhil or PhD student sits an oral exam and is required to discuss and defend their original contribution to the field of study.

Tips for a DPhil

You should now be aware of the DPhil meaning, however if you are still unsure whether this is the right PhD degree for you, here are some tips you can use to reassure yourself, particularly if you are an international student looking to study in the UK:

Talk to an academic supervisor, or even your potential supervisor themselves. They will be able to reiterate the points above and give you confidence that your doctoral study will result in a doctoral degree with the same academic merit as a PhD.

If you are pursuing international study, just like any doctorate degree you should confirm English language requirements, study costs, living costs, travel expenses or any other additional expenses associated with the project.

Doctoral study is a big commitment, so as a DPhil or PhD candidate you need to ask yourself ‘is a PhD worth it?’. If you are genuinely interested in your field or research or wish to gain expert knowledge and contribute to a specific topic, then PhD study could be for you. Doctorates are well equipped to pursue academic careers. Academic positions include lecturers, postdoctoral researchers and PhD supervisors. However, the transferable skills developed over the course of their programmes give them an edge beyond just the academic job market. The research and development industries in particular often look to recruit PhD holders for their expertise in novel techniques. It is important therefore to consider your career goals, and how a DPhil may influence your job prospects.

To conclude, when considering a DPhil vs PhD, either way you will hold a Doctorate of Philosophy. The two advanced degrees differ in name only and are of equal academic merit.

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PHD Meaning: Here’s What It Means and How to Use It?

You’ve likely seen the abbreviation PHD — but what is the meaning of PHD? We’ll tell you. Read on as we explore this common acronym.

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There are several ways to abbreviate words in the English language — hence why there are so many acronyms and abbreviations found in the dictionary today. 

While some terms are pretty self-explanatory, like “Feb,” which stands for “February,” there are some acronyms that could use a bit of explaining — such as Ph.D.

Although Ph.D is an abbreviation with more than one meaning, it commonly refers to a Doctor of Philosophy (Ph.D): spelled with a capitalized “P,” lowercase “h,” and uppercase “D.”  

Interested in learning more? We can help. Read on as we explore the abbreviation Ph.D to uncover its meaning, origin, and more. Are you ready? Let’s dive in.

What Does PhD Mean?

Ph.D — aka Doctor of Philosophy — is defined by Dictionary.com as the highest degree awarded by a school in a field of academic study. A doctorate is typically awarded to an individual who has completed three or more years of graduate study and a dissertation approved by a committee of professors. 

Common abbreviations used for the doctor of philosophy include: 

• Ph.D. 

After completing the Ph.D degree or dissertation, a graduate can use Dr. or Ph.D. For example:

• Dr. Suzie Johnson or
• Suzie Johnson (Ph.D) or
• Dr. Suzie Johnson (Ph.D) 

What Is the Origin of Ph.D?

Abbreviated from the Latin term philosophiae doctor meaning “doctor of philosophy,” the Ph.D is the highest degree in most fields, with the notable exceptions of medicine and law that have their own doctorates. The degree originated in 19th century Germany when the word “philosophy” had the much broader meaning of “love of wisdom.”

Though universities have existed in Europe long before the 19th century, the degrees that medieval universities awarded to students had more in common with the MD than with the Ph.D, as they required mastery of already existing knowledge. 

In 1861, Yale University became the first institution of higher education in the United States to award the degree, conferring it on three recipients; Arthur W, Wright, James M. Whiton, and Eugene Schuyler. A few decades later, Canada accepted Ph.D as their highest level of honor, and in 1917, the doctoral of philosophy was introduced in all disciplines of the subjects.  

How Can I Use Ph.D in a Sentence?

Now that you understand what Ph.D means, let’s take a look at some examples of this acronym in a sentence:

“After telling him I earned an academic degree, he bragged for the rest of the night about having a Ph.D .”

“I can’t decide what academic field to get my Ph.D in.”

“Tom can’t work full-time because he is a Ph.D student and has to work on his thesis.”

“My mom is thinking about going back to school to complete a Ph.D program in psychology.”

“I am in the second year of my Ph.D program.”

“Whether you like physics, chemistry, or psychology, you can find a Ph.D program on campus,”

“Look, I understand that you’re my supervisor, but I am looking to get my Ph.D degree and ultimately become a doctor of medicine; in other words, I have to study and can’t pick up more than one shift per week.” 

“Have you taken the exams yet to get your Ph.D ?”

“Did you know that some Ph.D programs accept a portfolio of published papers?”

“To get a Ph.D , it’s important to study hard and get good grades.”

“Gosh, I didn’t realize how many seminars and workshops I’d have to attend to get a Ph.D !”

“A Ph.D comes with a pretty hefty fee, so be sure to apply for scholarships.”

What Is a Doctorate?

Simply put, a doctorate is any qualification that awards a doctoral degree. To qualify for one, you need to produce work at a high level that makes a significant new contribution to knowledge in your academic field. Doing so earns you the title “Doctor.”

Many people believe a doctorate and a Ph.D are the same. However, this is not the case, as a Ph.D is a type of doctorate, such as a Doctor of Philosophy. Other doctoral degrees or types of doctorate include:

• Doctor of Education
• Doctor of Theology
• Doctor of Medicine
• Doctor of Musical Arts
• Doctor of Literature
• Doctor of Divinity
• Doctor of Civil Law
• Doctor of Science

According to the American Psychological Association, the Ph.D is intended for students interested in gaining new knowledge through scientific research, or teaching experience. 

Does PHD Stand For Anything Else?

Although the abbreviation PHD is most commonly associated with the Doctorate of Philosophy, it does have a few other meanings:

• Pizza Hut Delivery
• Press Here, Dummy
• Permanent Head Damage
• Pretty Heavy Drinker
• Please Hire Desperate
• Preparing His Disciples
• Player Hating Degree
• Power Hungry Dog
• Premium Hot Dog
• Pretty Heavy Dude
• Poor, Hungry, and Determined

A Final Word

So, what does PHD mean, you ask?

Simply put, PHD is an abbreviation that stands for many words; however, it’s most commonly used to abbreviate “Doctor of Philosophy.”

We hope this guide has provided you with all of the information you need to understand the meaning of PHD fully. To discover more interesting words and strengthen your overall vocabulary, be sure to check out our website , where you’ll find definitions, grammar tips, and more!  

• A Brief History of the PhD | NeuWrite West 
• Ph.d. Definition & Meaning | Dictionary.com
• The First American Doctor of Philosophy Degree: A Centennial Salute to Yale, 1861-1961 | The Journal of Higher Education

Kevin Miller is a growth marketer with an extensive background in Search Engine Optimization, paid acquisition and email marketing. He is also an online editor and writer based out of Los Angeles, CA. He studied at Georgetown University, worked at Google and became infatuated with English Grammar and for years has been diving into the language, demystifying the do's and don'ts for all who share the same passion! He can be found online here.

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A PhD , or Doctor of Philosophy, is a postgraduate doctoral degree. A PhD is awarded to students who complete an original thesis and contribute knowledge in their subject area. Most PhD study will involve carrying out a literature review, conducting original research and collecting results, producing and writing a thesis, submitting it as a dissertation and later defending it through an oral exam. A PhD is three to four years in length.

A PhD refers to a research degree. The main requirement behind a PhD is creating new knowledge. To complete a PhD, students must hold an undergraduate degree and in many cases, a master’s degree. To apply, students usually submit a research proposal to the department where they want to study. This proposal outlines what a student intends to research on, how it relates to current research and describes what methods students will use to carry out their research.

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