know for a fact

Definition of know for a fact

:to be certain
  • I know for a fact that he did it.

Word by Word Definitions

know play
  1. : to perceive directly : have direct cognition of

  2. : to have understanding of

  3. : to recognize the nature of : discern

  1. : knowledge

fact play
  1. : a thing done: such as

  2. : feat

  3. : crime


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