noun \ ˈfakt \

Definition of fact

1 :a thing done: such as
a obsolete :feat
b :crime
  • accessory after the fact
c archaic :action
2 archaic :performance, doing
3 :the quality of being actual :actuality
  • a question of fact hinges on evidence
4 a :something that has actual existence
  • space exploration is now a fact
b :an actual occurrence
  • prove the fact of damage
5 :a piece of information presented as having objective reality
  • These are the hard facts of the case.
in fact
:in truth
  • He looks younger, but in fact, he is 60 years old.

Examples of fact in a Sentence

  1. Rapid electronic communication is now a fact.

  2. The book is filled with interesting facts and figures.

  3. He did it, and that's a fact.

Recent Examples of fact from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fact.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of fact

Latin factum, from neuter of factus, past participle of facere — see factitious

FACT Defined for English Language Learners



Definition of fact for English Language Learners

  • : something that truly exists or happens : something that has actual existence

  • : a true piece of information

FACT Defined for Kids


noun \ ˈfakt \

Definition of fact for Students

1 :something that really exists or has occurred
  • Space travel is now a fact.
2 :a true piece of information
  • “I just know for a fact that she has a huge family to feed!”
  • —Kenneth Grahame, The Wind in the Willows
in fact
:in truth :actually
  • She got there early and in fact she was earliest.

Law Dictionary



legal Definition of fact

1 :something that has actual existence :a matter of objective reality
2 :any of the circumstances of a case that exist or are alleged to exist in reality :a thing whose actual occurrence or existence is to be determined by the evidence presented at trial — see also finding of fact at finding, judicial notice, question of fact at question, trier of fact — compare law, opinion
adjudicative fact
:a fact particularly related to the parties to an especially administrative proceeding — compare legislative fact in this entry
collateral fact
:a fact that has no direct relation to or immediate bearing on the case or matter in question — compare material fact in this entry
constitutional fact
:a fact that relates to the determination of a constitutional issue (as violation of a constitutional right) used especially of administrative findings of fact
evidentiary fact
:a fact that is part of the situation from which a case arises and that is established by testimony or other evidence called also mediate fact, predicate fact; compare ultimate fact in this entry
legislative fact
:a fact of general social, economic, or scientific relevance that does not change from case to case — compare adjudicative fact in this entry
material fact
:a fact that affects decision making: as
a :a fact upon which the outcome of all or part of a lawsuit depends
b :a fact that would influence a reasonable person under the circumstances in making an investment decision (as in purchasing a security or voting for a corporate officer or action)
mediate fact
:evidentiary fact in this entry
predicate fact
:evidentiary fact in this entry
ultimate fact \ˈəl-ti-mət-\
:a conclusion of law or especially mixed fact and law that is necessary to the determination of issues in a case and that is established by evidentiary facts — compare evidentiary fact in this entry
in fact
:as a factual matter :established by fact rather than as a matter of law

Origin and Etymology of fact

Latin factum deed, real happening, something done, from neuter of factus, past participle of facere to do, make

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