prison
Americannoun
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a building for the confinement of persons held while awaiting trial, persons sentenced after conviction, etc.
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any place of confinement or involuntary restraint.
noun
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a public building used to house convicted criminals and accused persons remanded in custody and awaiting trial See also jail penitentiary reformatory
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any place of confinement or seeming confinement
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of prison
before 1150; Middle English prison, earlier prisun < Old French, variant of preson imprisonment, a prison < Latin pre ( hē ) nsiōn- (stem of prehēnsiō ) a seizure, arrest, equivalent to prehēns ( us ) (past participle of prehendere to seize) + -iōn- -ion; doublet of prehension
Explanation
A prison is a place where criminals and people waiting for trials are locked up. If you’ve been cooped up in the house, you might feel like you’re stuck inside prison walls. But if you’re not, go outside already. A person who's been sentenced to time in prison is called a prisoner. Prisons vary, but usually prisoners are confined to a small cell, with time spent in large groups for eating, working, and exercise. If you feel like you're stuck in a place or a situation, you might call that prison: "I can't wait to go home — this summer camp is like a prison!" The Latin root is prension, "laying hold of."
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.
Upon his return, he transformed the Tocorón Prison in the northern Venezuelan state of Aragua into a leisure complex, complete with zoo, restaurants, nightclub, betting shop and swimming pool.
From BBC • Jun. 13, 2026
The Israel Prison Service told the BBC at the time it operated in "full accordance with the law" and was unaware of the claims described.
From BBC • May 29, 2026
Prison is one of the most taken-for-granted institutions.
From Slate • May 27, 2026
She also earned course credit for her interaction with fellow students enrolled through the university’s Prison Graduation Initiative.
From Los Angeles Times • May 19, 2026
Prison got into your skin, or under it.
From "Newjack: Guarding Sing Sing" by Ted Conover
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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.