lockup

noun

lock·​up ˈläk-ˌəp How to pronounce lockup (audio)
Synonyms of lockupnext
1
: jail
especially : a local jail where persons are detained prior to court hearing
2
: an act of locking : the state of being locked

Examples of lockup in a Sentence

the firm conviction that juvenile offenders should never be held in adult lockups
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Salinas Valley has become one of the most violent lockups in the state. Matthew Ormseth, Los Angeles Times, 17 Apr. 2026 Photos capture missing American’s husband in first sighting since lockup. FOXNews.com, 14 Apr. 2026 Diddy had faced a maximum of 20 years in lockup; the prosecution asked Subramanian for a 135-month sentence. Victoria Bekiempis, Vulture, 9 Apr. 2026 Rapper Lil Tjay was sprung from lockup Tuesday after his arrest for allegedly participating in a fight just before the rapper Offset was shot in Florida Monday evening. Theresa Braine, New York Daily News, 8 Apr. 2026 See All Example Sentences for lockup

Word History

First Known Use

1746, in the meaning defined at sense 1

Time Traveler
The first known use of lockup was in 1746

Browse Nearby Words

Cite this Entry

“Lockup.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lockup. Accessed 26 Apr. 2026.

Kids Definition

lockup

noun
lock·​up -ˌəp How to pronounce lockup (audio)

Legal Definition

lockup

noun
lock·​up
1
: a cell or group of cells (as in a courthouse) or jail where persons are held prior to a court hearing compare house of correction, house of detention, jail, penitentiary, prison
2
: the tactic of arranging with a friendly party an option to buy a valuable portion of one's corporate assets in order to discourage a takeover by another party

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