- fact - a piece of information about circumstances that exist or events that have occurred; "first you must collect all the facts of the case"
--1 is a kind of information
--1 has particulars:case; detail, item, point; particular, specific; general; matter of fact; observation; reason; score; truth - fact - a statement or assertion of verified information about something that is the case or has happened; "he supported his argument with an impressive array of facts"
--2 is a kind of information, info
--2 has particulars:record, record book, book; basics, rudiments; index, index number, indicant, indicator - fact - an event known to have happened or something known to have existed; "your fears have no basis in fact"; "how much of the story is fact and how much fiction is hard to tell"
--3 is a kind of reality, realness, realism
- fact - a concept whose truth can be proved; "scientific hypotheses are not facts"
--4 is a kind of concept, conception, construct
- fact - a statement or assertion of verified information about something that is the case or has happened; "he supported his argument with an impressive array of facts"