a subject of conversation or discussion

to provide a topic for discussion.

the subject or theme of a discourse or of one of its parts.

Rhetoric, Logic . a general field of considerations from which arguments can be drawn.

Also called theme. Linguistics . the part of a sentence that announces the item about which the rest of the sentence communicates information, often signaled by initial position in the sentence or by a grammatical marker. Compare comment ( def. 6 ) .

noun

affair , argument , business , case , division , field , head , issue , material , matter , matter in hand , moot point , motif , motion , motive , point , point in question , problem , proposition , question , resolution , subject , text , theme , theorem , thesis , subject matter , gambit , item , subdivision