Topic word meaning and definition

[noun] some situation or event that is thought about; "he kept drifting off the topic"; "he had been thinking about the subject for several years"; "it is a matter for the police"
[noun] the subject matter of a conversation or discussion; "he didn't want to discuss that subject"; "it was a very sensitive topic"; "his letters were always on the theme of love"

\Top"ic\, n. [F. topiques, pl., L. topica the title of a work of Aristotle, Gr. topika`, fr. topiko`s of or for place, concerning to`poi, or commonplaces, fr. to`pos a place.]
(a) One of the various general forms of argument employed in probable as distinguished from demonstrative reasoning, -- denominated by Aristotle to`poi (literally, places), as being the places or sources from which arguments may be derived, or to which they may be referred; also, a prepared form of argument, applicable to a great variety of cases, with a supply of which the ancient rhetoricians and orators provided themselves; a commonplace of argument or oratory.
(b) pl. A treatise on forms of argument; a system or scheme of forms or commonplaces of argument or oratory; as, the Topics of Aristotle. These topics, or loci, were no other than general ideas applicable to a great many different subjects, which the orator was directed to consult. --Blair. In this question by [reason] I do not mean a distinct topic, but a transcendent that runs through all topics. --Jer. Taylor. 2. An argument or reason. [Obs.] Contumacious persons, who are not to be fixed by any principles, whom no topics can work upon. --Bp. Wilkins. 3. The subject of any distinct portion of a discourse, or argument, or literary composition; also, the general or main subject of the whole; a matter treated of; a subject, as of conversation or of thought; a matter; a point; a head. 4. (Med.) An external local application or remedy, as a plaster, a blister, etc. [Obsoles.] --Wiseman.
\Top"ic\, a. Topical. --Drayton. Holland.

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