fact

noun

1. a piece of information about circumstances that exist or events that have occurred

   noun.cognition

   Examples

   First you must collect all the facts of the case.

   Source: WordNet 3.0

2. a statement or assertion of verified information about something that is the case or has happened

   noun.communication

   Examples

   He supported his argument with an impressive array of facts.

   Source: WordNet 3.0

3. an event known to have happened or something known to have existed

   noun.state

   Examples

   Your fears have no basis in fact.

   How much of the story is fact and how much fiction is hard to tell.

   Source: WordNet 3.0

4. a concept whose truth can be proved

   noun.cognition

   Examples

   Scientific hypotheses are not facts.

   Source: WordNet 3.0

5. A doing, making, or preparing.

   noun

   Source: webster1913