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inmate

American  
[in-meyt] / ˈɪnˌmeɪt /

noun

  • inmates
    plural
  1. a person who is confined in a prison, hospital, etc.

  2. Archaic. a person who dwells with others in the same house.


inmate British  
/ ˈɪnˌmeɪt /

noun

  1. a person who is confined to an institution such as a prison or hospital See also resident

  2. obsolete a person who lives with others in a house

"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

Noun Inflected Forms

Etymology

Origin of inmate

First recorded in 1580–90; in- 1 + mate 1

Compare meaning

How does inmate compare to similar and commonly confused words? Explore the most common comparisons:

Explanation

An inmate is a person who lives in a specific place, especially someone who's confined there, like a prisoner. You can call yourself an Inmate if you get sent to your room, but usually inmates are behind bars in "the big house." You can talk about a hospital inmate or the inmates at a local boarding school, but it's most common to use inmate and prisoner interchangeably. Originally, in the 16th century, an inmate was "one allowed to live in a house rented by another" — a roommate who's not on the lease, in other words. This meaning comes from in and mate, "friend or companion." By the 1830s, inmate had come to mean "one confined to an institution."

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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:

News of Combs’ further-truncated sentence comes a week after TMZ reported the musician was involved in an altercation with another inmate.

From Los Angeles Times Jul. 30, 2026

"It's this instrument of resistance… where we can really share friendship, love and our voices can be heard," Steve Happi, the former inmate who co-founded Jail Time Records, tells the BBC's Talking Movies programme.

From BBC Jul. 26, 2026

“The inmate Carroll impregnated is not one of the two victims in this case,” Assistant District Attorney Eric DuTemple said in an email this week.

From The Wall Street Journal Jul. 24, 2026

In Naiguata, a small coastal town famous for its traditional "dancing devils" festival, Cesar Rendon, 49, a former inmate who lived in the town's halfway house, confides that he "unburdened himself" with Apostol.

From Barron's Jul. 8, 2026

She wrote also with great pleasure of her brother’s being an inmate of Mr. Darcy’s house, and mentioned with raptures some plans of the latter with regard to new furniture.

From "Pride and Prejudice" by Jane Austen

As part of investigating the assault on SW, detectives learned that Brambles had been released from custody under California’s parole laws for elderly inmates.

From Los Angeles Times Aug. 13, 2026

Officials have estimated that at least 630 inmates would have been freed immediately if the new rules had been in place in February this year.

From BBC Aug. 13, 2026

He said the plan would be based on removing more foreign national offenders from prisons, releasing some offenders on indefinite sentences, and using space in women's jails for male inmates.

From BBC Aug. 12, 2026

Whatever was going on, nobody responded to Alcaraz’s desperate pleas for help and the shouts of the other inmates.

From Slate Aug. 11, 2026

Newly freed inmates streamed out the front gate.

From "Dactyl Hill Squad" by Daniel José Older

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