thesis
Pluraltheses
- 1A long essay written to establish the validity of a claim, especially one submitted to fulfill the requirements for an academic degree; a dissertation.
Her doctoral thesis examined migration patterns across three continents.
He defended his thesis before a committee of five professors.
UsageYou write, submit and defend a thesis on a topic.
Similardissertation
Note
The word changes rank as it crosses the Atlantic. In the US a thesis usually completes a non-doctoral degree, and the doctoral work is called a dissertation. In the UK the thesis is the doctoral work itself. Oliver Goldsmith's The Vicar of Wakefield (1766) uses the word more broadly, for a composed discourse read aloud beside "two homilies."
Checked 1 Nov 2026 · 3 facts
- Oliver Goldsmith wrote The Vicar of Wakefield. gutenberg.org
- The Vicar of Wakefield was first published in 1766; the first-edition title page bears that year. archive.org
- The novel uses thesis for a composition that its narrator reads aloud alongside two homilies; the quoted words are exact. gutenberg.org
- 2A statement, theory, or proposition that someone puts forward as true and supports with arguments or evidence.
Her thesis that early humans cooked their food reshaped the debate.
Critics attacked the central thesis of the book point by point.
UsageYou put forward, advance or defend a thesis; the plural is theses.
Similarargument, proposition, contention, claim, hypothesis
Note
Numbered sets of theses still recall Martin Luther's 95; Larry Sanger framed his own nine that way in 2025.
Checked 2 Nov 2026 · 3 facts
- Martin Luther wrote the numbered set known as the Ninety-five Theses. en.wikisource.org
- Larry Sanger presented nine numbered theses and explicitly connected his presentation with Luther's theses. larrysanger.org
- Sanger developed his Nine Theses on Wikipedia in 2025. en.wikipedia.org
- 3In dialectical reasoning, the first stage: a position stated and then opposed by its antithesis, the conflict being resolved in a synthesis. The triad is popularly credited to Hegel, though it comes mainly from Fichte.
In the classic dialectical triad, a thesis is challenged by its antithesis before both are reconciled.
The lecture traced how a thesis develops into synthesis through contradiction.
UsageUsually in the set thesis, antithesis, synthesis.
Oppositeantithesis
Note
In the scheme, often credited to Hegel though he seldom used these terms, the thesis posits a definite position. The contradiction it contains calls up its antithesis, and the tension between the two is resolved in a synthesis. In this use the word names a stage in a process rather than a claim someone defends.
Checked 2 Nov 2026 · 3 facts
- The scheme is commonly attributed to Hegel. en.wikipedia.org
- Hegel seldom used this terminology; he did not adopt it to describe his own philosophy. plato.stanford.edu
- In the conventional scheme, an initial position generates opposition through contradiction, and synthesis reconciles the opposition. marxists.org
Less common meanings
- 4A conjecture too imprecise to be formally stated or verified, yet useful as a working assumption.
- 5The downward motion of the hand or foot used to mark rhythm, and so the accented, stressed beat of a measure of music or verse; an ictus.
- 6The lowering of the voice on a syllable, and so the unstressed part of a metrical foot or an unaccented musical note.
Practice
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Origin
The root is Proto-Indo-European *dʰeh₁- ("to place, put, do"), which gave the Ancient Greek verb títhēmi ("to place, put, set") and from it thésis ("arrangement, placement, position, or lowering of the voice"). English got the word through Late Middle English and Latin thesis. It is a doublet of deed. The German philosopher Johann Gottlieb Fichte first used it for the opening stage of reasoning, and it was later applied to Hegel's dialectical method.