- Knowledge or information based on real occurrences: an account based on fact; a blur of fact and fancy. (noun)
- 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. (noun)
- A real occurrence; an event: had to prove the facts of the case. (noun)
- Something believed to be true or real: a document laced with mistaken facts. (noun)
- A thing that has been done, especially a crime: an accessory before the fact. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.