A thesis (from Greek θέσις, from τίθημι tithemi, I put) is a formal academic work, also known as a dissertation. Thesis may also refer to: Thesis statement, of a dissertation, essay, or other argumentative work Arsis and thesis, used to refer to the downbeat or accented part of a measure or declining part of a phrase Organisations, brands and companies Thesis (representative body), a German academic organisation Thesis (typeface), a font superfamily designed by Lucas de Groot Lancia Thesis, an executive car by Lancia Entertainment Tesis, a Spanish film Thesis (Jimmy Guiffre 3 album) Thesis (Matthew Shipp and Joe Morris album) The Thesis, album by The Ambassador Mathematics and logic A conjecture, especially one too vague to be formally stated or verified but useful as a working convention A hypothesis, especially one too vague to be formally stated or verified but useful as a working convention A proposition Humanities In philosophy, the first stage of a dialectic, as in thesis, antithesis, synthesis See also TESIS Aviation Enterprise, a cargo airline from Russia