thesis

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thesis

  • /ˈθiːsɪs/ UK
  • /ˈθɛsɪs/ UK, archaic
  • /ˈθisɪs/ US
  • /ˈθiːsiːz/ UK
  • /ˈθisiz/ US

Rhymes with -iːsɪs, -iːsiːz

Where it comes from

From Late Middle English thesis (“lowering of the voice”) and also borrowed directly from its etymon Latin thesis (“proposition, thesis; lowering of the voice”), from Ancient Greek θέσῐς (thésĭs, “arrangement, placement, setting; conclusion, position, thesis; lowering of the voice”), from τῐ́θημῐ (tĭ́thēmĭ, “to place, put, set; to put down in writing; to consider as, regard”) (ultimately from Proto-Indo-European *dʰeh₁- (“to do; to place, put”)) + -σῐς (-sĭs, suffix forming abstract nouns or nouns of action, process, or result). The English word is a doublet of deed.

Sense 1.1 (“proposition or statement supported by arguments”) is adopted from antithesis. Sense 1.4 (“initial stage of reasoning”) was first used by the German philosopher Johann Gottlieb Fichte (1762–1814), and later applied to the dialectical method of his countryman, the philosopher Georg Wilhelm Friedrich Hegel (1770–1831).

The plural form theses is borrowed from Latin thesēs, from Ancient Greek θέσεις (théseis).

noun theses

  1. rhetoric A proposition or statement supported by arguments. I submit these nine theses to Wikipedia’s community and to the world. I do this, as Martin Luther said when he posted his famous 95 theses, “Out of love for the truth and the desire to elucidate it.” […] I am confident that every thesis stands on solid ground.
  2. broadly A lengthy essay written to establish the validity of a thesis (sense 1.1), especially one submitted in order to complete the requirements for a non-doctoral degree in the US and a doctoral degree in the UK; a dissertation. I told them of the grave, becoming, and ſublime deportment they ſhould aſſume upon this myſtical occaſion, and read them two homilies and a theſis of my own compoſing, in order to prepare them.
  3. A conjecture, especially one too vague to be formally stated or verified but useful as a working convention.
  4. An affirmation, or distinction from a supposition or hypothesis.
  5. In the dialectical method of Georg Wilhelm Friedrich Hegel: the initial stage of reasoning where a formal statement of a point is developed; this is followed by antithesis and synthesis.
  6. The action of lowering the hand or bringing down the foot when indicating a rhythm; hence, an accented part of a measure of music or verse indicated by this action; an ictus, a stress.

    Opposite: arsis

  7. with a reversal of meaning A depression of the voice when pronouncing a syllables of a word; hence, the unstressed part of the metrical foot of a verse upon which such a depression falls, or an unaccented musical note.

Thesaurus

Closest in meaning: dissertation, theme, hypothesis, notion, argument, point, memory, premise, idea, opinion, assumption, study, essay, remembrance, case, view

Translations

Every language

noun proposition or statement supported by arguments

Españoltesis
한국어테제 teje, 논제 nonje
日本語テーゼ tēze, 論題 rondai, 主張 shuchō, 定立 teiritsu
中文論點 /论点 lùndiǎn, 論題 /论题 lùntí
Portuguêstese
Françaisthèse
DeutschThese
Italianotesi, tema
Русскийте́зис tɛ́zis, положе́ние položénije
Tiếng Việtluận đề

noun lengthy essay written to establish the validity of a thesis, especially one submitted as a requirement for a university degree

Españoltesis doctoral, tesina
한국어논문 nonmun
日本語論文 ronbun
中文論文 /论文 lùnwén
Portuguêstese
Françaisthèse
DeutschAbschlussarbeit, Bachelorarbeit, Masterarbeit, Diplomarbeit, Doktorarbeit, Dissertation
Italianotesi
Românăteză, disertație
Русскийдиссерта́ция dissertácija, дипло́мная рабо́та diplómnaja rabóta
Tiếng Việtđồ án tốt nghiệp, luận văn
العربيةأُطْرُوحَة ʔuṭrūḥa
עבריתתֶּזָה téza

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MLA

"thesis." Wiktionary, via Micwyn, micwyn.com/word/thesis. Accessed 6 Nov. 2026.

APA

thesis. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/thesis

Chicago

"thesis." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/thesis.

BibTeX
@misc{thesis_2026,
  title = {thesis},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/thesis},
  urldate = {2026-11-06}
}