\ˈklōzd \

Definition of closed 

1a : not open

b : enclosed

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

But our plan was hatched behind closed doors, in meetings not open to the public, as convened by former Mayor Ed Murray. Danny Westneat, The Seattle Times, "Political trouble was ‘baked into the cake’ of Seattle’s sweeping upzoning plan," 5 Dec. 2018 For example, the sink is actually tucked around the corner to keep messy dishes out of sight; a large pantry holds essentials behind closed doors. Samantha Weiss Hills, Curbed, "Embracing nature—and minimalism—in North Carolina," 26 Nov. 2018 According to prosecutors, Arnault’s trial will likely take place in autumn, behind closed doors. Madeleine Aggeler, The Cut, "Nobel Scandal: Photographer Faces Two Charges of Rape," 12 June 2018 The village’s attorneys have maintained that because the lawyer who was village attorney at the time was present during the closed-door talks, anything discussed is protected by attorney-client privilege. Mike Nolan, Daily Southtown, "Settlement talks planned in federal housing lawsuit against Tinley Park," 11 June 2018 The trial was delayed for two hours Tuesday after the morning proceedings began under seal and were closed to the public and press. Alex Pappas, Fox News, "Defense rests in Manafort case, ex-Trump campaign chairman won't testify," 15 Aug. 2018 Fueling speculation regarding her lack of public appearances, the event was closed to the press. Caroline Hallemann, Town & Country, "Melania Trump Made Her First Public Appearance in Almost a Month Last Night," 5 June 2018 But the event was closed to the news media out of respect for the families — meaning the first lady still was only seen in the flesh by those in attendance. Time, "Melania Trump Hosts Event After More Than 3 Weeks Out of Public Eye," 4 June 2018 The Oregon Department of Transportation said Thursday evening the southbound lanes would remain closed at Ashland, Oregon. CBS News, "More than 60 large wildfires burning across U.S.," 6 July 2018

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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Statistics for closed

Last Updated

8 Dec 2018

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Time Traveler for closed

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

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More Definitions for closed



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 \

Kids Definition of closed

: not open a closed door


\ˈklōzd \

Medical Definition of closed 

1 : being a complete self-contained system with nothing transferred in or out a closed thermodynamic system

2a : covered by unbroken skin a closed fracture

b : not penetrating 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, National Geographic, December 2006

3 : not discharging pathogenic organisms to the outside a case of closed tuberculosis — compare open 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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More from Merriam-Webster on closed

Rhyming Dictionary: Words that rhyme with closed

Nglish: Translation of closed for Spanish Speakers

Britannica English: Translation of closed for Arabic Speakers

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a nest or breeding place

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