the·sis [thee-sis] Show IPA
noun, plural -ses [-seez] Show IPA.
a proposition stated or put forward for consideration, especially one to be discussed and proved or to be maintained against objections: He vigorously defended his thesis on the causes of war.
a subject for a composition or essay.
a dissertation on a particular subject in which one has done original research, as one presented by a candidate for a diploma or degree.
Music. the downward stroke in conducting; downbeat. Compare arsis (def. 1).
a part of a metrical foot that does not bear the ictus or stress.
(less commonly) the part of a metrical foot that bears the ictus. Compare arsis (def. 2).