Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.
Class IV. Words Relating to the Intellectual FacultiesDivision (I) Formation of Ideas
Section I. Operations of Intellect in General
454. [Subject of Thought (Greek).] Topic.
SUBJECT, subject matter; matter, motif [F.], theme, noemata [Greek], topic, what it is about, thesis, text, business, affair, matter in hand, argument; motion, resolution; head, chapter; case, point; proposition, theorem; field of inquiry; moot point, debatable point, point at issue, point in question; problem (question) [See Inquiry].