thesis statement definition oxford dictionary

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An argument or proposition, which may be opposed by an antithesis; or a scholarly essay defending some proposition, usually a dissertation submitted for an academic degree. The thesis of a literary work is its abstract doctrinal content, that is, a proposition for which it argues. For ‘thesis novel’, see roman à thèse; for ‘thesis play’, see problem play.

From:   thesis   in  The Oxford Dictionary of Literary Terms »

Subjects: Linguistics

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thesis noun

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What does the noun thesis mean?

There are seven meanings listed in OED's entry for the noun thesis . See ‘Meaning & use’ for definitions, usage, and quotation evidence.

thesis has developed meanings and uses in subjects including

Entry status

OED is undergoing a continuous programme of revision to modernize and improve definitions. This entry has not yet been fully revised.

How common is the noun thesis ?

How is the noun thesis pronounced?

British english, u.s. english, where does the noun thesis come from.

Earliest known use

Middle English

The earliest known use of the noun thesis is in the Middle English period (1150—1500).

OED's earliest evidence for thesis is from before 1398, in a translation by John Trevisa, translator.

thesis is a borrowing from Greek.

Etymons: Greek θέσις .

Nearby entries

• thesaurus, n. 1823–
• thesaury, n. a1639–1708
• these, n. a1600–48
• these, pron. & adj. Old English–
• Thesean, adj. 1815–
• Theseid, n. 1725–
• Theseium, n. 1819–
• these-like, adj. 1644–
• thesial, adj. 1654
• thesicle, n. 1863–
• thesis, n. a1398–
• thesis-novel, n. 1934–
• thesis-play, n. 1902–
• thesmophilist, n. 1644–
• Thesmophorian, adj. 1891–
• Thesmophoric, adj. 1788–
• thesmothete, n. 1603–
• thesocyte, n. 1887–
• thesp, n. 1962–
• Thespian, adj. & n. 1675–
• Thespianism, n. 1914–

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Meaning & use

Pronunciation, compounds & derived words, entry history for thesis, n..

thesis, n. was first published in 1912; not yet revised.

thesis, n. was last modified in December 2023.

Revision of the OED is a long-term project. Entries in oed.com which have not been revised may include:

• corrections and revisions to definitions, pronunciation, etymology, headwords, variant spellings, quotations, and dates;
• new senses, phrases, and quotations which have been added in subsequent print and online updates.

Revisions and additions of this kind were last incorporated into thesis, n. in December 2023.

Earlier versions of this entry were published in:

OED First Edition (1912)

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OED Second Edition (1989)

• View thesis in OED Second Edition

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Definition of thesis

Did you know.

In high school, college, or graduate school, students often have to write a thesis on a topic in their major field of study. In many fields, a final thesis is the biggest challenge involved in getting a master's degree, and the same is true for students studying for a Ph.D. (a Ph.D. thesis is often called a dissertation ). But a thesis may also be an idea; so in the course of the paper the student may put forth several theses (notice the plural form) and attempt to prove them.

Examples of thesis in a Sentence

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'thesis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

in sense 3, Middle English, lowering of the voice, from Late Latin & Greek; Late Latin, from Greek, downbeat, more important part of a foot, literally, act of laying down; in other senses, Latin, from Greek, literally, act of laying down, from tithenai to put, lay down — more at do

14th century, in the meaning defined at sense 3a(1)

Dictionary Entries Near thesis

the sins of the fathers are visited upon the children

thesis novel

Cite this Entry

“Thesis.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/thesis. Accessed 28 Jun. 2024.

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• Literary Terms
• Definition & Examples
• When & How to Write a Thesis

I. What is a Thesis?

The thesis (pronounced thee -seez), also known as a thesis statement, is the sentence that introduces the main argument or point of view of a composition (formal essay, nonfiction piece, or narrative). It is the main claim that the author is making about that topic and serves to summarize and introduce that writing that will be discussed throughout the entire piece. For this reason, the thesis is typically found within the first introduction paragraph.

II. Examples of Theses

Here are a few examples of theses which may be found in the introductions of a variety of essays :

In “The Mending Wall,” Robert Frost uses imagery, metaphor, and dialogue to argue against the use of fences between neighbors.

In this example, the thesis introduces the main subject (Frost’s poem “The Mending Wall”), aspects of the subject which will be examined (imagery, metaphor, and dialogue) and the writer’s argument (fences should not be used).

While Facebook connects some, overall, the social networking site is negative in that it isolates users, causes jealousy, and becomes an addiction.

This thesis introduces an argumentative essay which argues against the use of Facebook due to three of its negative effects.

During the college application process, I discovered my willingness to work hard to achieve my dreams and just what those dreams were.

In this more personal example, the thesis statement introduces a narrative essay which will focus on personal development in realizing one’s goals and how to achieve them.

III. The Importance of Using a Thesis

Theses are absolutely necessary components in essays because they introduce what an essay will be about. Without a thesis, the essay lacks clear organization and direction. Theses allow writers to organize their ideas by clearly stating them, and they allow readers to be aware from the beginning of a composition’s subject, argument, and course. Thesis statements must precisely express an argument within the introductory paragraph of the piece in order to guide the reader from the very beginning.

IV. Examples of Theses in Literature

For examples of theses in literature, consider these thesis statements from essays about topics in literature:

In William Shakespeare’s “ Sonnet 46,” both physicality and emotion together form powerful romantic love.

This thesis statement clearly states the work and its author as well as the main argument: physicality and emotion create romantic love.

In The Scarlet Letter, Nathaniel Hawthorne symbolically shows Hester Prynne’s developing identity through the use of the letter A: she moves from adulteress to able community member to angel.

In this example, the work and author are introduced as well as the main argument and supporting points: Prynne’s identity is shown through the letter A in three ways: adulteress, able community member, and angel.

John Keats’ poem “To Autumn” utilizes rhythm, rhyme, and imagery to examine autumn’s simultaneous birth and decay.

This thesis statement introduces the poem and its author along with an argument about the nature of autumn. This argument will be supported by an examination of rhythm, rhyme, and imagery.

V. Examples of Theses in Pop Culture

Sometimes, pop culture attempts to make arguments similar to those of research papers and essays. Here are a few examples of theses in pop culture:

America’s food industry is making a killing and it’s making us sick, but you have the power to turn the tables.

The documentary Food Inc. examines this thesis with evidence throughout the film including video evidence, interviews with experts, and scientific research.

Orca whales should not be kept in captivity, as it is psychologically traumatizing and has caused them to kill their own trainers.

Blackfish uses footage, interviews, and history to argue for the thesis that orca whales should not be held in captivity.

VI. Related Terms

Just as a thesis is introduced in the beginning of a composition, the hypothesis is considered a starting point as well. Whereas a thesis introduces the main point of an essay, the hypothesis introduces a proposed explanation which is being investigated through scientific or mathematical research. Thesis statements present arguments based on evidence which is presented throughout the paper, whereas hypotheses are being tested by scientists and mathematicians who may disprove or prove them through experimentation. Here is an example of a hypothesis versus a thesis:

Hypothesis:

Students skip school more often as summer vacation approaches.

This hypothesis could be tested by examining attendance records and interviewing students. It may or may not be true.

Students skip school due to sickness, boredom with classes, and the urge to rebel.

This thesis presents an argument which will be examined and supported in the paper with detailed evidence and research.

Introduction

A paper’s introduction is its first paragraph which is used to introduce the paper’s main aim and points used to support that aim throughout the paper. The thesis statement is the most important part of the introduction which states all of this information in one concise statement. Typically, introduction paragraphs require a thesis statement which ties together the entire introduction and introduces the rest of the paper.

VII. Conclusion

Theses are necessary components of well-organized and convincing essays, nonfiction pieces, narratives , and documentaries. They allow writers to organize and support arguments to be developed throughout a composition, and they allow readers to understand from the beginning what the aim of the composition is.

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• Anachronism
• Anthropomorphism
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• Bildungsroman
• Characterization
• Circumlocution
• Cliffhanger
• Comic Relief
• Connotation
• Deus ex machina
• Deuteragonist
• Doppelganger
• Double Entendre
• Dramatic irony
• Equivocation
• Extended Metaphor
• Figures of Speech
• Flash-forward
• Foreshadowing
• Intertextuality
• Juxtaposition
• Literary Device
• Malapropism
• Onomatopoeia
• Parallelism
• Pathetic Fallacy
• Personification
• Point of View
• Polysyndeton
• Protagonist
• Red Herring
• Rhetorical Device
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• Science Fiction
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Meaning of thesis in English

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• I wrote my thesis on literacy strategies for boys .
• Her main thesis is that children need a lot of verbal stimulation .
• boilerplate
• composition
• corresponding author
• dissertation
• essay question
• peer review

You can also find related words, phrases, and synonyms in the topics:

thesis | Intermediate English

Examples of thesis, collocations with thesis.

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Translations of thesis

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Word of the Day

at the coalface

doing the work involved in a job, in real working conditions, rather than planning or talking about it

Fakes and forgeries (Things that are not what they seem to be)

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What is a Thesis Statement: Definition, Types & Purpose

Learn about what is a thesis statement from this article. This thesis statement definition helps you learn more about it. Clear your concept today!

Last updated on May 16th, 2024

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Table of Contents

Do you have any idea about what a thesis statement means? A couple of students asked me to know what a thesis statement is. Usually, a thesis statement is used in academic essays, essay writing, and academic papers that affirm the main ideas about the whole paper.

If you find what a thesis statement definition is, you are in the right place. In this article, we are going to discuss the definition of a thesis statement and hope that you will get proper information about what a thesis statement is in a great way.

What is a thesis statement? 

Let’s get to know what a thesis statement is. 

A thesis statement could be a significant generalization that can stand by itself as the basis of an essay’s development. It is a statement of what the writer believes is genuine or wrong and why, and it may be a statement that can be either genuine or wrong.

A thesis statement clearly and concisely passes on the writer’s main argument in an essay, and it permits readers to grab the focus of the paper, which can be created within the body of the paper.

A thesis statement must be unified—expressing one fundamental idea—although it can, and frequently does, include writers’ concepts as they relate to the main idea. The thesis statement should be broad enough and questionable enough to be worth defending in a paper.

A thesis statement is important in writing because it evolves only after impressive reading, writing, and thinking have been done on your topic. You’ll start the writing process of a paper with a preparative or open thesis, move on to a tentative proposal or speculation, and at last arrive at your closed or last thesis.

During your writing, you’ll end up more secure in progressing your last thesis statement, which incorporates the elemental reason you’ve chosen to support your assertion.

Components of a Thesis Statement

To express what a thesis statement is, you need to concentrate on showing a brief argument or main thought that your paper will explore.

• Make it particular, far from being true, and important to your topic. Use clear language that traces the focus of your argument without being too unclear or wide.
• To analyze what a thesis statement is, making it specific and focused includes clearly expressing your viewpoint on a specific point. Ensure it’s not as broad or common.
• To realize this, recognize the most important argument or point you need to explore and refine it to cover a specific aspect or viewpoint within your topic. Maintain a strategic distance from unclear terms and instead use exact language that highlights the most important points of your paper or documents.
• To make your thesis statement arguable, maintain a strategic distance from expressing facts or all-around acknowledged thoughts.
• Instead, that can be supported or challenged through proof or thinking. Represent an opinion or interpretation that might not be instantly agreed upon by everybody.

Related : How to Write a Research Paper Introduction

Functions of a Thesis Statement

If you want to get an idea of what a thesis statement is, you must know its function.

A well-structured thesis statement serves as a guide for your writing process. It gives clear information for your essay or paper, making a difference if you remain centered on your main argument or point of view. This direction guarantees that all your subsequent sections and arguments relate to and support your thesis, keeping up a cohesive structure.

Also, a compelling thesis statement engages the reader by representing a clear and interesting viewpoint. It sets the tone for your writing, provides the reader’s interest, and empowers them to continue reading to get it and assess your viewpoint. The best thesis statement captures the attention and interest of the reader in exploring your work.

Example of a Thesis Statement

When you need to research what a thesis statement definition is, you can find some examples on various sites that will help you understand it. Here, I am sharing with all of you three examples of thesis statements.

Overlooking the arguments against studying the English language and literature, one should focus on the benefits and positive aspects of studying them.

Whether a competitive environment exists in educational institutions

is good or bad; it is a matter of argumentation; it is an argumentative topic.

Overlooking the arguments against undergrad studies in private universities, one should focus on the benefits and

positive aspects of studying this.

Whether we should avoid social media or not is a matter of argument.

Common Mistakes to Avoid

What is a thesis statement definition? When you try to learn about this topic, you must also know what types of mistakes you should avoid in a thesis statement. Otherwise, your thesis statement may be inaccurate and miss the main point of your entire paper. Mistakes are discussed below:

• Vagueness and ambiguity
• Overly broad statements
• Lack of connection to the topic

Avoiding these mistakes in a thesis statement is significant because clarity and accuracy are essential. Vagueness and ambiguity can confuse the reader, whereas excessively broad statements might make the focus unclear. Make sure a clear connection to the topic makes a difference and keeps up relevance and coherence all through your writing, directing the reader through your arguments successfully.

Crafting a Strong Thesis Statement

It is not enough to know what a thesis statement means. You must gain appropriate knowledge on how to make your thesis statement strong.

• Brainstorming makes a difference in generating thoughts and ideas, as well as exploring different points for your thesis statement.
• Research proves and supports your arguments. Revising ensures that your thesis statement is clear and exact, provides the main idea of this paper or essay, and successfully passes on your main point, making it more grounded and compelling. It’s all about creating a strong foundation for your argument.

Thesis Statements in Different Writing

Students have experience with what a thesis statement is. However, some students have no idea of the thesis statements used in different writings. Without further ado, let’s learn about where you can use thesis statements. Thesis statements serve as the central argument or fundamental point in

• Academic essays
• Research papers
• Persuasive essays

Academic essays:

They provide proper guidance on the content and structure of the paper, summarizing the main theme of the paper and representing the writer’s thoughts.

Research papers:

Here, a thesis statement outlines the purpose of the research, the major argument, and the scope of the paper’s research.

Persuasive essays:

The thesis statement in persuasive writing represents the writer’s position on a specific point and aims to convince the reader of its legitimacy, ordinarily providing reasons or proof to back the argument.

In conclusion, a thesis statement is a vital part of any academic work. It serves as the main part of the paper or document. However, it serves as an effective affirmation of the writer’s main argument or viewpoint. It affirms the essence of the essay or term paper, guides the reader through the central thought, and sets the arrangement for the subsequent discussion.

A well-crafted thesis statement not only gives clarity and direction to the content but also builds up the foundation upon which the whole paper is built. It also represents the writer’s point of view and welcomes basic analysis and engagement from the readers.

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• May 16th, 2024
• Dec 29th, 2023

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How to Write a Thesis Statement

We already discuss what a thesis statement is. Are you interested in knowing how to write a thesis statement? If you’re an undergraduate student, you must know how to write a thesis statement. Though the thesis statement is not used for all papers, It is especially used in essay-type papers.

12 Thesis Statement Examples That Will Be Helpful for You

A thesis statement is a major part of a research paper or document. Without a thesis statement, your documents or essay will not be completed. Some of the students wanted to know about a thesis statement example or a good thesis statement example. They are concerned about their academic research

Do you have any idea about what a thesis statement means? A couple of students asked me to know what a thesis statement is. Usually, a thesis statement is used in academic essays, essay writing, and academic papers that affirm the main ideas about the whole paper. If you find

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Oxford theses

The Bodleian Libraries’ thesis collection holds every DPhil thesis deposited at the University of Oxford since the degree began in its present form in 1917. Our oldest theses date from the early 1920s. We also have substantial holdings of MLitt theses, for which deposit became compulsory in 1953, and MPhil theses.

Since 2007 it has been a mandatory requirement for students to deposit an electronic copy of their DPhil thesis in the Oxford University Research Archive (ORA) , in addition to the deposit of a paper copy – the copy of record. Since the COVID pandemic, the requirement of a paper copy has been removed and the ORA copy has become the copy of record. Hardcopy theses are now only deposited under exceptional circumstances. 

ORA provides full-text PDF copies of most recent DPhil theses, and some earlier BLitt/MLitt theses. Find out more about Oxford Digital Theses, and depositing with ORA .

Finding Oxford theses

The following theses are catalogued on SOLO (the University libraries’ resource discovery tool) :

• DPhil and BLitt and MLitt theses
• BPhil and MPhil theses 
• Science theses

SOLO collates search results from several sources.

How to search for Oxford theses on SOLO

To search for theses in the Oxford collections on SOLO :

• navigate to the SOLO homepage
• click on the 'Advanced Search' button
• click the 'Material Type' menu and choose the 'Dissertations' option
• type in the title or author of the thesis you are looking for and click the 'Search' button.

Also try an “Any field” search for “Thesis Oxford” along with the author’s name under “creator” and any further “Any field” keywords such as department or subject. 

Searching by shelfmarks

If you are searching using the shelfmark, please make sure you include the dots in your search (e.g. D.Phil.). Records will not be returned if they are left out.

Oxford University Research Archive (ORA)

ORA was established in 2007 as a permanent and secure online archive of research produced by members of the University of Oxford. It is now mandatory for students completing a research degree at the University to deposit an electronic copy of their thesis in this archive. 

Authors can select immediate release on ORA, or apply a 1-year or 3-year embargo period. The embargo period would enable them to publish all or part of their research elsewhere if they wish. 

Theses held in ORA are searchable via  SOLO , as well as external services such as EThOS and Google Scholar. For more information, visit the Oxford digital theses guide , and see below for guidance on searching in ORA.

Search for Oxford theses on ORA

Type your keywords (title, name) into the main search box, and use quotes (“) to search for an exact phrase.

Refine your search results using the drop-downs on the left-hand side. These include:

• item type (thesis, journal article, book section, etc.)
• thesis type (DPhil, MSc, MLitt, etc.)
• subject area (History, Economics, Biochemistry, etc.)
• item date (as a range)
• file availability (whether a full text is available to download or not)

You can also increase the number of search results shown per page, and sort by relevance, date and file availability. You can select and export records to csv or email. 

Select hyperlinked text within the record details, such as “More by this author”, to run a secondary search on an author’s name. You can also select a hyperlinked keyword or subject. 

Other catalogues

Card catalogue  .

The Rare Books department of the Weston Library keeps an author card index of Oxford theses. This includes all non-scientific theses deposited between 1922 and 2016. Please ask Weston Library staff for assistance.

ProQuest Dissertations & Theses

You can use ProQuest Dissertations & Theses Global  to find bibliographic details of Oxford theses not listed on SOLO. Ask staff in the Weston Library’s Charles Wendall David Reading Room for help finding these theses. 

Search for Oxford theses on ProQuest Dissertations & Theses Global

Basic search.

The default Basic search page allows for general keyword searches across all indexes using "and", "and not", "and or" to link the keywords as appropriate. Click on the More Search Options tab for specific title, author, subject and institution (school) searches, and to browse indexes of authors, institutions and subjects. These indexes allow you to add the word or phrase recognised by the database to your search (ie University of Oxford (United Kingdom), not Oxford University).

Advanced search

The Advanced search tab (at the top of the page) enables keyword searching in specific indexes, including author, title, institution, department, adviser and language. If you are unsure of the exact details of thesis, you can use the search boxes on this page to find it by combining the key information you do have.

Search tools

In both the Basic and Advanced search pages you can also limit the search by date by using the boxes at the bottom. Use the Search Tools advice in both the Basic and Advanced pages to undertake more complex and specific searches. Within the list of results, once you have found the record that you are interested in, you can click on the link to obtain a full citation and abstract. You can use the back button on your browser to return to your list of citations.

The Browse search tab allows you to search by subject or by location (ie institution). These are given in an alphabetical list. You can click on a top-level subject to show subdivisions of the subject. You can click on a country location to show lists of institutions in that country. At each level, you can click on View Documents to show lists of individual theses for that subject division or from that location.

In Browse search, locations and subject divisions are automatically added to a basic search at the bottom of the page. You can search within a subject or location by title, author, institution, subject, date etc, by clicking on Refine Search at the top of the page or More Search Options at the bottom of the page.

Where are physical Oxford theses held?

The Bodleian Libraries hold all doctoral theses and most postgraduate (non-doctoral) theses for which a deposit requirement is stipulated by the University:

• DPhil (doctoral) theses (1922 – 2021)
• Bachelor of Divinity (BD) theses
• BLitt/MLitt theses (Michaelmas Term 1953 – 2021)
• BPhil and MPhil theses (Michaelmas Term 1977 – 2021)

Most Oxford theses are held in Bodleian Offsite Storage. Some theses are available in the libraries; these are listed below.

Law Library

Theses submitted to the Faculty of Law are held at the Bodleian Law Library .

Vere Harmsworth Library

Theses on the United States are held at the Vere Harmsworth Library .

Social Science Library

The Social Science Library holds dissertations and theses selected by the departments it supports. 

The list of departments and further information are available in the Dissertations and Theses section of the SSL webpages. 

Locations for Anthropology and Archaeology theses

The Balfour Library holds theses for the MPhil in Material and Visual Anthropology and some older theses in Prehistoric Archaeology.

The Art, Archaeology and Ancient World Library holds theses for MPhil in Classical Archaeology and MPhil in European Archaeology.

Ordering Oxford theses

Theses held in Bodleian Offsite Storage are consulted in the Weston Library. The preferred location is the Charles Wendell David Reading Room ; they can also be ordered to the Sir Charles Mackerras Reading Room .

Find out more about requesting a digitised copy, copyright restrictions and copying from Oxford theses .

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

• theory of something the theory of evolution/relativity
• scientific/economic theory
• The theories were tested on a sample of the population.
• theory about something He developed a new theory about the cause of stomach ulcers.
• theory on something theories on human behaviour
• theory behind something She has written a book explaining the theory behind her art.
• according to a theory According to the theory of relativity, nothing can travel faster than light.
• formulate/​advance a theory/​hypothesis
• build/​construct/​create/​develop a simple/​theoretical/​mathematical model
• develop/​establish/​provide/​use a theoretical/​conceptual framework
• advance/​argue/​develop the thesis that…
• explore an idea/​a concept/​a hypothesis
• make a prediction/​an inference
• base a prediction/​your calculations on something
• investigate/​evaluate/​accept/​challenge/​reject a theory/​hypothesis/​model
• design an experiment/​a questionnaire/​a study/​a test
• do research/​an experiment/​an analysis
• make observations/​measurements/​calculations
• carry out/​conduct/​perform an experiment/​a test/​a longitudinal study/​observations/​clinical trials
• run an experiment/​a simulation/​clinical trials
• repeat an experiment/​a test/​an analysis
• replicate a study/​the results/​the findings
• observe/​study/​examine/​investigate/​assess a pattern/​a process/​a behaviour
• fund/​support the research/​project/​study
• seek/​provide/​get/​secure funding for research
• collect/​gather/​extract data/​information
• yield data/​evidence/​similar findings/​the same results
• analyse/​examine the data/​soil samples/​a specimen
• consider/​compare/​interpret the results/​findings
• fit the data/​model
• confirm/​support/​verify a prediction/​a hypothesis/​the results/​the findings
• prove a conjecture/​hypothesis/​theorem
• draw/​make/​reach the same conclusions
• read/​review the records/​literature
• describe/​report an experiment/​a study
• present/​publish/​summarize the results/​findings
• present/​publish/​read/​review/​cite a paper in a scientific journal
• The debate is centred around two conflicting theories.
• Current feminist theory consists of several different trends.
• His comments are just abstract theory and show little understanding of the realities of the situation.
• the dominant strand of postmodern theory
• the existence of a grand unified theory that determines everything in the universe
• Further experiments seemed to confirm this theory.
• He wrote a number of books on political theory.
• It is a theory that cannot be proved or disproved.
• Marx's theories of history raise one or two major questions.
• The theory was first advanced back in the 16th century.
• This is all theory so far…you'll need to back it up with facts.
• hold something
• suggest something
• explain something
• theory about
• put (the) theory into practice
• theory and practice

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