1. (n.) A single piece of information; something given or admitted; a fact or principle granted\; that upon which an inference or an argument is based; -- used chiefly in the plural.

2. (n.) The quantities or relations which are assumed to be given in any problem.

absolute fact accepted fact account acquaintance actual fact admitted fact announcement article aspect axiom bald fact bare fact basis for belief blue book body of evidence briefing brutal fact bulletin case chain of evidence circumstance clue cold fact communication communique conceded fact corpus count data demonstrable fact detail directory dispatch documentation element empirical fact enlightenment established fact evidence exhibit experience expertise facet fact fact of experience factor facts factual base factual information familiarity familiarization gen general information given fact grounds grounds for belief guidebook handout hard fact hard information incidental incidental information indication indisputable fact inescapable fact info information instance instruction intelligence intimacy item item of evidence ken know-how knowing knowledge light manifestation mark material grounds matter matter of fact mention message minor detail minutia minutiae muniments mute witness naked fact not guesswork not opinion notice notification particular piece of evidence plain point positive fact postulate practical knowledge premises presentation private knowledge privity promotional material proof provable fact publication publicity ratio cognoscendi reason to believe regard release relevant fact report respect salient fact self-evident fact self-knowledge sidelight sign significant fact simple fact sober fact statement stubborn fact symptom technic technics technique the case the dope the goods the know the nitty-gritty the scoop thing token transmission undeniable fact well-known fact white book white paper word