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 It was loaded with a full magazine and a round in the chamber. cleveland, "Woman finds gun on tree lawn while out walking her dog: Fairview Park Police Blotter," 3 July 2020 There has been vocal opposition to the provision in the chamber, such as Sen. Josh Hawley (R-Mo.), who has proposed an amendment to strip the renaming requirement. Washington Post, "Trump says he’ll veto $740 billion defense bill if it means renaming Confederate-named military bases," 1 July 2020 Hundreds of protesters swarmed into Hong Kong’s legislature, defacing portraits of lawmakers and spray-painting pro-democracy slogans in the chamber before vacating it as riot police cleared surrounding streets with tear gas., "This day in history," 1 July 2020 The Senate currently is split 53-47, the majority held by Republicans, and adding two D.C. senators would cut into the GOP advantage in the chamber. Nicholas Wu, USA TODAY, "House to vote on making DC the 51st state, but GOP opposition means bill unlikely to advance further," 26 June 2020 McConnell, who's been Senate majority leader since 2015, has represented Kentucky in the chamber since 1985. Naomi Lim, Washington Examiner, "Charles Booker could emerge as Democratic nominee to Mitch McConnell after last-minute primary surge," 23 June 2020 As voters choose their parties’ nominees for the general election on Tuesday, Republicans maintain a dominant supermajority in the chamber, holding 28 seats to the Democrats’ nine. Joe Sonka, The Courier-Journal, "4 state Senate primaries (and one special election) to watch in Kentucky on Tuesday," 22 June 2020 Each year, the House and Senate are controlled by whoever controls a majority of the seats in the chamber. James Brooks, Anchorage Daily News, "In Alaska primary elections, it’s Republican versus Republican, with dividends as the battleground," 22 June 2020 But there was a single bullet left in the chamber, authorities said. Emma Dale, Detroit Free Press, "Police: Detroit woman shot brother, 14, after failing to empty last bullet from gun," 19 June 2020 Recent Examples on the Web: Verb Signage is free to chamber members, $10 to others particpating in the effort. Yvette Orozco, Houston Chronicle, "Pearland businesses to community: ‘Yes, we’re open’," 5 June 2020 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

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

10 Jul 2020

Cite this Entry

“Chamber.” Dictionary, Merriam-Webster, Accessed 10 Jul. 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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