cham·​ber | \ ˈchām-bər How to pronounce chamber (audio) \

Definition of chamber

 (Entry 1 of 3)

1 : room especially : bedroom
2 : a natural or artificial enclosed space or cavity
3a : a hall for the meetings of a deliberative, legislative, or judicial body the senate chamber
b : a room where a judge transacts business usually used in plural
c : the reception room of a person of rank or authority
4a : a legislative or judicial body especially : either of the houses of a bicameral legislature
b : a voluntary board or council
5a : the part of the bore of a gun that holds the charge
b : a compartment in the cartridge cylinder of a revolver


chambered; chambering\ ˈchām-​b(ə-​)riŋ How to pronounce chambering (audio) \

Definition of chamber (Entry 2 of 3)

transitive verb

1 : to place in or as if in a chamber : house
2 : to serve as a chamber for especially : to accommodate in the chamber of a firearm



Definition of chamber (Entry 3 of 3)

: being, relating to, or performing chamber music

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Other Words from chamber


chambered \ ˈchām-​bərd How to pronounce chambered (audio) \ adjective

Examples of chamber in a Sentence

Noun He put three bullets into the chamber of the gun. the chambers of the heart We waited for the senator outside the Senate chamber. The U.S. legislature is separated into two chambers: the Senate and the House of Representatives. Verb chambered the lost hikers in the barn until the next morning
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Recent Examples on the Web: Noun Republicans hold a majority in the House, though Democrats are trying to flip at least nine seats to seize control of the chamber. Allie Morris, Dallas News, "LGBT Texans would get nondiscrimination protection under proposed bipartisan Texas House legislation," 27 May 2020 Scott Morrison, Australia’s prime minister, has called for their closure, as have American senators from both sides of the chamber. The Economist, "Curbing zoonotic diseases Will wet markets be hung out to dry after the pandemic?," 26 May 2020 Placards were thrown and pro-democracy lawmakers tried to rush the bench before being dragged out of the chamber by guards, The Guardian reported. Fox News, "Hong Kong pro-democracy lawmakers dragged out of legislative session before pro-Beijing camp elects chair," 18 May 2020 Republicans lost 40 seats that year, enough for Democrats to take hold of the chamber., "Trump Gets Ally as Ex-Navy Pilot Wins California House Seat," 13 May 2020 The Supreme Court is expected to void Sunday’s election and the speaker of the lower chamber will set a new date. Joanna Berendt, New York Times, "Pandemic Forces Poland to Delay Presidential Election," 7 May 2020 Republicans hold a supermajority of over 60% of the seats in both the House and Senate, needing only a majority of each chamber to override Beshear's vetoes. Joe Sonka, The Courier-Journal, "Gov. Andy Beshear issues line-item vetoes of state budget and revenue bills," 13 Apr. 2020 Hill beat former Republican Rep. Steve Knight in the 2018 midterm election by 9 percentage points, joining a wave of women who helped Democrats win back control of the lower chamber. Los Angeles Times, "Democrats spend $1 million on healthcare attack ad in California House race," 6 Apr. 2020 Some senators were seated on blue couches in the back of the chamber. Jessie Balmert,, "Campaign hand sanitizer and casual attire: How state lawmakers voted amid a novel coronavirus crisis," 25 Mar. 2020 Recent Examples on the Web: Verb Small revolvers, like Ruger’s LCR and the Smith & Wesson Bodyguard, are light, concealable, and controllable unless chambered for the .357 Magnum. Richard Mann, Field & Stream, "The Beginner’s Guide to Concealed Carry," 16 Apr. 2020 In 1970, Jack O’Connor, who was a major force behind the .270’s ascendance, said that by his estimation, more custom sporting rifles had been chambered in that cartridge than in any other in the postwar years. John B. Snow, Field & Stream, "How the Brand-New 27 Nosler Revives the .277," 21 Feb. 2020 The rifle weighs less than 6.5 pounds, has a folding stock, one-piece receiver, and is chambered for the 6.5 Creedmoor, .308 Winchester, and Sig Sauer’s new high-pressure cartridge, the 277 Sig Fury. Richard Mann, Field & Stream, "Best New Hunting Rifles of the 2020 SHOT Show," 21 Jan. 2020 The lever-action M1895 Winchester was the first commercial rifle ever chambered for .30/06. Ron Spomer, Outdoor Life, "The .30/06 Springfield: Why This Old Cartridge is Still the Best for Big Game Hunting," 5 Mar. 2019 Both camps have a point, but the dogpile of insults and echo-chambering leaves little room for seeing eye to eye. Sara Li, Teen Vogue, "Twitter Fights Between Sanders, Biden and Warren Supporters Won’t Help Us Beat Trump," 9 Mar. 2020 Cimarron, known for their high-quality reproductions of Old West arms, has given the Single Action Army a new twist by chambering it in 10mm. Joseph Albanese, Field & Stream, "Best Cheap Guns of SHOT Show 2020," 7 Feb. 2020 The star of the show, however, is an Accuracy International chambered in .338 Lapua that is being tweaked to make one hell of a long shot. John B. Snow, Outdoor Life, "Q&A with Stephen Hunter, Author of the New Bob Lee Swagger Novel," 2 Jan. 2020 Patterson returned with a gun, chambered a round and pointed the weapon at Farris, said police, who said Farris then shot Patterson multiple times. Dana Branham, Dallas News, "Security guard fatally shoots man who attacked him in west Oak Cliff, Dallas police say," 19 Feb. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chamber.' 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 chamber


13th century, in the meaning defined at sense 1


1568, in the meaning defined at sense 1


1706, in the meaning defined above

History and Etymology for chamber


Middle English chambre, from Anglo-French, from Late Latin camera, from Latin, arched roof, from Greek kamara vault

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Time Traveler for chamber

Time Traveler

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

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Statistics for chamber

Last Updated

31 May 2020

Cite this Entry

“Chamber.” Dictionary, Merriam-Webster, Accessed 7 Jun. 2020.

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More Definitions for chamber


How to pronounce chamber (audio)

English Language Learners Definition of chamber

: a small space inside something (such as a machine or your body)
: a usually large room where members of a government group (such as a legislature) have meetings
: a group of people who form part of a government


cham·​ber | \ ˈchām-bər How to pronounce chamber (audio) \

Kids Definition of chamber

1 : an enclosed space, cavity, or compartment the chambers of the heart
2 : a room in a house and especially a bedroom
3 : a room used for a special purpose the pyramid's burial chamber
4 : a meeting hall of a government body the Senate chamber
5 : a room where a judge conducts business outside of the courtroom
6 : a group of people organized into a lawmaking body The Senate and the House of Representatives make up the two chambers of the United States legislature.
7 : a board or council of volunteers (as businessmen)

Other Words from chamber

chambered \ -​bərd \ adjective a chambered shell


cham·​ber | \ ˈchām-bər How to pronounce chamber (audio) \

Medical Definition of chamber

: an enclosed space within the body of an animal — see anterior chamber, posterior chamber, pulp chamber, vitreous chamber

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Legal Definition of chamber

1 : a judge's office specifically : the private office where a judge carries on business other than court sessions (as conferences or signing papers) usually used in pl. four other judges met in my chambers— R. H. Bork a hearing in chambers
2a : a hall for the meetings of a deliberative, legislative, or judicial body or assembly to run back into the House chamber— Tip O'Neill
b : a legislative or judicial body : house

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More from Merriam-Webster on chamber

Thesaurus: All synonyms and antonyms for chamber

Spanish Central: Translation of chamber

Nglish: Translation of chamber for Spanish Speakers

Britannica English: Translation of chamber for Arabic Speakers

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