fact (făkt)n. 1. Knowledge or information based on real occurrences: an account based on fact; a blur of fact and fancy. 2. a. Something demonstrated to exist or known to have existed: Genetic engineering is now a fact. That Chaucer was a real person is an undisputed fact. b. A real occurrence; an event: had to prove the facts of the case. c. Something believed to be true or real: a document laced with mistaken facts. 3. A thing that has been done, especially a crime: an accessory before the fact. 4.Law. The aspect of a case at law comprising events determined by evidence: The jury made a finding of fact.Idiom:in (point of) fact In reality or in truth; actually. [Latin factum, deed, from neuter past participle of facere, to do. See dhē- in Indo-European Roots.] Usage Note:Fact has a long history of usage in the sense “allegation of fact,” as in “This tract was distributed to thousands of American teachers, but the facts and the reasoning are wrong” (Albert Shanker). This practice has led to the introduction of the phrases true facts and real facts, as in The true facts of the case may never be known. These usages may occasion qualms among critics who insist that facts can only be true, but the usages are often useful for emphasis.