\ ˈklōzd How to pronounce closed (audio) \

Definition of closed

1a : not open
c : composed entirely of closed tubes or vessels a closed circulatory system
2a : having the skin intact with no underlying tissue exposed closed wounds — see also closed fracture
b of a head injury : having the skull intact : not marked by fracture or penetration of the skull
3a : forming a self-contained unit allowing no additions closed association
b(1) : traced by a moving point that returns to an arbitrary starting point closed curve also : so formed that every plane section is a closed curve closed surface
(2) : characterized by mathematical elements that when subjected to an operation produce only elements of the same set the set of whole numbers is closed under addition and multiplication
(3) : containing all the limit points of every possible subset a closed interval contains its endpoints
c : characterized by continuous return and reuse of the working substance a closed cooling system
d of a racecourse : having the same starting and finishing point
4a : confined to a few closed membership
b : excluding participation of outsiders or witnesses : conducted in strict secrecy
c : rigidly excluding outside influence a closed mind
5 : ending in a consonant closed syllable

Examples of closed in a Sentence

He looked at me through half-closed eyes. The store is closed for lunch between 1 and 2 p.m. The beach is closed this time of night. These restrooms are closed for cleaning. The chairman declared the discussion closed and allowed no further speeches.
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Recent Examples on the Web For several months, imaging centers were closed and many routine appointments were canceled due to COVID-19. Anne S. Grauel,, "Health Dept.: Don’t put off screenings out of fear of coronavirus," 17 Oct. 2020 Windows are usually closed, reducing the ventilation that disperses airborne bugs. Jason Douglas, WSJ, "Covid-19 Battle to Intensify as Winter Sets In," 16 Oct. 2020 The nearby walk-in clinic was closed, so Fishbein invited his friend over to his place for the test. Lisa Sanders, New York Times, "His Fingernails Were Purple but Didn’t Hurt. What Was This?," 15 Oct. 2020 Gyms around Santa Fe were closed, and the idea of doing burpees in my living room made my eyes cross. Nick Heil, Outside Online, "I Missed Bars. So I Built One in My Own Backyard.," 15 Oct. 2020 Now the substance abuse programs were closed and the jobs were vanishing. Washington Post, "Reports of child abuse are down. This investigator is scared for the kids she’s not seeing.," 15 Oct. 2020 While the dining room is still closed, a small outdoor patio is available for sit-down dining. Richard A. Marini,, "3 scenic drives through Texas Hill Country from Interstate 10 in San Antonio area," 14 Oct. 2020 Ballots can be cast between 8 a.m. and 7 p.m. daily, except Sunday Oct. 18 and Sunday Oct. 25, when polls are closed. Staff Report,, "Early balloting begins Friday for St. Tammany Parish voters," 13 Oct. 2020 Pleasantville Road was closed while the Harford County Sheriff’s Office Traffic Unit conducted their investigation into the cause of the crash. S. Wayne Carter Jr.,, "Forest Hill woman dies after rush hour crash in Fallston, Harford sheriff’s office investigating," 8 Oct. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'closed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of closed

13th century, in the meaning defined at sense 1a

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Time Traveler for closed

Time Traveler

The first known use of closed was in the 13th century

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Statistics for closed

Last Updated

20 Oct 2020

Cite this Entry

“Closed.” Dictionary, Merriam-Webster, Accessed 25 Oct. 2020.

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More Definitions for closed


How to pronounce closed (audio)

English Language Learners Definition of closed

: covering an opening : having an opening that is covered
: not operating or open to the public
: having ended : not being worked on anymore


\ ˈklōzd How to pronounce closed (audio) \

Kids Definition of closed

: not open a closed door


\ ˈklōzd How to pronounce closed (audio) \

Medical Definition of closed

1 : being a complete self-contained system with nothing transferred in or out a closed thermodynamic system
2a : having the skin intact with no underlying tissue exposed closed wounds — see closed fracture
b of a head injury : having the skull intact : not marked by fracture or penetration of the skull Closed head injuries result from the force of a blast or a blow in which the skull remains intact but the brain, surrounded by fluid like an egg yolk, gets wrenched or slammed against the skull wall.— Neil Shea
3 : not discharging pathogenic organisms to the outside a case of closed tuberculosis — compare open entry 1 sense 2

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Legal Definition of closed

1 : confined to a few closed membership
2 : excluding outsiders or witnesses : conducted in secrecy closed hearings

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