<p><strong>Noun</strong></p><ul><li>a subject of conversation or discussion: to provide a topic for discussion.</li><li>the subject or theme of a discourse or of one of its parts.</li><li>Synonyms: subject matter, thesis.</li><li>Rhetoric, Logic: a general field of considerations from which arguments can be drawn.</li><li>Also called theme.</li><li>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.</li></ul>