Dictionary.com
Thesaurus.com
Synonyms

prison

American  
[priz-uhn] / ˈprɪz ən /

noun

prisons plural
  1. a building for the confinement of persons held while awaiting trial, persons sentenced after conviction, etc.

  2. state prison.

  3. any place of confinement or involuntary restraint.

  4. imprisonment.


prison British  
/ ˈprɪzən /

noun

  1. a public building used to house convicted criminals and accused persons remanded in custody and awaiting trial See also jail penitentiary reformatory

  2. any place of confinement or seeming confinement

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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 ( ) 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."

Keep Reading on Vocabulary.com

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

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "prison" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com