for a fact

English

Pronunciation

  • Audio (General Australian):(file)

Adverb

for a fact (not comparable)

  1. (idiomatic) Without doubt.
    I know this for a fact.
    Synonym: for a certainty
  2. Used other than figuratively or idiomatically: see for,‎ a,‎ fact.
    The doctor had asked for a fact that I could not remember.

See also