topic

n. theme; subject of conversation

Topic can refer to:A subject of discussion, see On-topicIn linguistics, the Topic (or theme) is the part of a proposition that is being talked about (predicated).Topicality (policy debate)Topics, a work by AristotleAn XML topic (a kind of resource)Topic (chocolate bar), a brand of milk chocolate confectionery bar with hazelnuts in soft nougat and smooth caramelTopic Maps, an ISO standard for the representation and interchange of knowledgeTopic Records, a British record labelTopic Sentence, a sentence in a paragraph in most literary write-ups indicating what the paragraph in general is about.
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The BID 770 was a British-built electronic cryptography device, codenamed TOPIC. It was also used by Canada's foreign service under the codename TENEC. TOPIC was brought into service in 1977, and became obsolete in 1995.TOPIC was used to protect telegraph traffic, and replaced the earlier mechanical system called ROCKEX. It could be operated in both on- and off-line modes. Weighing 65lb, the machine used diode-transistor logic instead of single transistors.
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Noun
1. 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"
(synonym) subject, theme
(hypernym) message, content, subject matter, substance
(hyponym) bone of contention
2. 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"
(synonym) subject, issue, matter
(hypernym) content, cognitive content, mental object
(hyponym) blind spot

(n.)
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.
  

(n.)
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.
  

(n.)
An external local application or remedy, as a plaster, a blister, etc.
  

(n.)
An argument or reason.
  

(n.)
A treatise on forms of argument; a system or scheme of forms or commonplaces of argument or oratory; as, the Topics of Aristotle.
  

(a.)
Topical.
  

topical
local
toponymic