synonyms, antonyms, definitions, examples & translations of fact in English

English Online Dictionary. What means fact‎? What does fact mean?



From Old French fact, from Latin factum (an act, deed, feat, etc.); also Medieval Latin for “state, condition, circumstance”; neuter of factus (done or made), perfect passive participle of faciō (do, make), ultimately from Proto-Indo-European *dʰeh₁- (to put, place, set). Old/Middle French later evolved it into faict and fait. Doublet of feat.


  • IPA(key): /fækt/
  • Rhymes: -ækt


fact (countable and uncountable, plural facts)

  1. Something actual as opposed to invented.
  2. Something which is real.
    Gravity is a fact, not a theory.
  3. Something concrete used as a basis for further interpretation.
  4. An objective consensus on a fundamental reality that has been agreed upon by a substantial number of experts.
  5. Information about a particular subject, especially actual conditions and/or circumstances.
    Addition facts include 2 + 2 = 4 and 3 + 4 = 7.
  6. (databases) An individual value or measurement at the lowest level of granularity in a data warehouse.
  7. (archaic) Action; the realm of action.
  8. (law, obsolete except in set phrases) A wrongful or criminal deed.
  9. (obsolete) A feat or meritorious deed.


  • (Something actual): fiction
  • (Something objective): opinion

Derived terms

Related terms


See also

  • value
  • belief


  • “fact”, in OneLook Dictionary Search.
  • “fact”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
  • “fact”, in The Century Dictionary [], New York, N.Y.: The Century Co., 1911, →OCLC.
  • "Conway: 'Alternative Facts'" Merriam-Webster's Trend Watch Merriam-Webster. 2017.



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


  • acft

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