topic

[ top-ik ]
/ ˈtɒp ɪk /

noun

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 7).

Origin of topic

1560–70; < Latin topica (plural) < Greek () topiká name of work by Aristotle (literally, (things) pertaining to commonplaces), equivalent to tóp(os) commonplace + -ika, neuter plural of -ikos -ic; see topo-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for topic

topic
/ (ˈtɒpɪk) /

noun

a subject or theme of a speech, essay, book, etc
a subject of conversation; item of discussion
(in rhetoric, logic, etc) a category or class of arguments or ideas which may be drawn on to furnish proofs

Word Origin for topic

C16: from Latin topica translating Greek ta topika, literally: matters relating to commonplaces, title of a treatise by Aristotle, from topoi, pl of topos place, commonplace
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012