Noun topic has 2 senses
- subject, topic, theme - 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"
--1 is a kind of message, content, subject matter, substance
--1 has particulars: bone of contention; precedent; question, head; keynote
- topic, subject, issue, matter - 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"
--2 is a kind of content, cognitive content, mental object
--2 has particulars: blind spot; res judicata, res adjudicata; area
,