topic Meaning, Definition & Usage

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

WordNet

Top"ic noun
Etymology
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.
Definitions
  1. (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 adjective
Definitions
  1. Topical. Drayton. Holland.

Webster 1913