fact
Americannoun
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facts
plural
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that which actually exists or is the case; reality or truth.
Your fears have no basis in fact.
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something known to exist or to have happened.
Space travel is now a fact.
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a truth known by actual experience or observation; something known to be true.
Scientists gather facts about plant growth.
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something said to be true or supposed to have happened.
The facts given by the witness are highly questionable.
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Law. Often facts. an actual or alleged event or circumstance relevant to a case, as distinguished from the legal effect of that event or circumstance.
interjection
idioms
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before the fact, prior to the commission of a crime.
an accessory before the fact.
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after the fact, after the commission of a crime.
an accessory after the fact.
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in fact, actually; really; indeed.
In fact, it was a wonder that anyone survived.
noun
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an event or thing known to have happened or existed
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a truth verifiable from experience or observation
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a piece of information
get me all the facts of this case
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law (often plural) an actual event, happening, etc, as distinguished from its legal consequences. Questions of fact are decided by the jury, questions of law by the court or judge
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philosophy a proposition that may be either true or false, as contrasted with an evaluative statement
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criminal law after the commission of the offence
an accessory after the fact
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criminal law before the commission of the offence
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in reality or actuality
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an inescapable truth, esp an unpleasant one
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the truth
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of fact
First recorded in 1530–40; from Latin factum “something done, deed,” noun use of neuter of factus “done,” past participle of facere “to do, make”; see also do 1
Explanation
You can't argue with facts: a fact is something proven to be true. It's important to distinguish between fact and fiction. When someone says, "Is that a fact?" they're asking "Is that really true?" When a detective says, "Give me the facts," he only wants information that is rock solid and confirmed. The job of science is to study things and figure out what the facts are in every field. Theories and opinions are not facts: you need to have proof for something to be a fact.
Vocabulary lists containing fact
The Language of Standardized Tests, List 1
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Jim Burke's Academic Vocabulary List
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Argumentative Writing
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
But the task is complicated by the fact that risks are dispersed across the Himalayas, while a 2015 earthquake destabilized many rock masses on the southern slopes, the embassy said.
From The Wall Street Journal ● Aug. 30, 2026
There’s also the fact that “Looney Tunes,” as beloved a property as it is, has some substantial mileage on it.
From Salon ● Aug. 30, 2026
"The previous and well-accepted measurements were, in fact, fine and our current understanding of the fate of the universe remains robust," said lead author Dr. Phil Wiseman, from the University of Southampton.
From Science Daily ● Aug. 29, 2026
“You don’t hide behind the fact that the fourth quarter wasn’t good enough. But I’m also not going to pretend we didn’t dominate that game through three quarters.”
From Los Angeles Times ● Aug. 29, 2026
In fact, once the sun set, Clare found it best to not leave his cottage at all.
From "The Undead Fox of Deadwood Forest" by Aubrey Hartman
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Official details of the agreement are scarce, but the facts reported by the Journal over the weekend aren’t cause for enthusiasm.
From The Wall Street Journal ● Aug. 30, 2026
Porter’s family recently asked Hochman to convene a grand jury to hear the facts.
From Los Angeles Times ● Aug. 28, 2026
The influencer said Owens is particularly believable because she doesn’t claim to have all the facts or all the answers.
From Salon ● Aug. 26, 2026
The potential for a problem stems from two facts.
From MarketWatch ● Aug. 25, 2026
I’d always put my faith in the facts.
From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.