Meaning

• Something actual as opposed to invented.

  "In this story, the Gettysburg Address is a fact, but the rest is fiction."

• Something which is real.

  "Gravity is a fact, not a theory."

• Something concrete used as a basis for further interpretation.

  "Let's look at the facts of the case before deciding."

• An objective consensus on a fundamental reality that has been agreed upon by a substantial number of experts.

  "There is no doubting the fact that the Earth orbits the Sun."

• Information about a particular subject, especially actual conditions and/or circumstances.

  "The facts about space travel."

• An individual value or measurement at the lowest level of granularity in a data warehouse.

• Action; the realm of action.

• A wrongful or criminal deed.

  "He had become an accessory after the fact."

• A feat or meritorious deed.

Meaning

• Used before making a statement to introduce it as a trustworthy one.