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 had been built in a wood chamber opposite the room in which Churchill was born. Fox News, "Solid gold toilet worth $1M named 'America' stolen from Winston Churchill's birthplace," 15 Sep. 2019 Over the summer, while still playing for the Oakland Raiders, Brown suffered a foot injury from frostbite after reportedly not wearing the right footwear in a cryotherapy chamber, according to Sports Illustrated. Mahita Gajanan, Time, "Patriots Wide Receiver Antonio Brown Is Accused of Rape in a Lawsuit. Here's What to Know," 11 Sep. 2019 Brown previously missed large portions of Raiders' training camp due to a helmet dispute with the NFL and a foot injury in a cryotherapy chamber. Michael Shapiro,, "Raiders Release WR Antonio Brown After Series of Incidents," 7 Sep. 2019 It was then placed into a sterile chamber equipped with foam arms to hold it in place and hooked up to a set of tubes. Lauren Caruba,, "San Antonio’s University Hospital part of study to improve transplants," 3 Sep. 2019 There is a chamber where six dumpster-size kilns produce molten-looking ceramic vessels, some as big as hot tubs. Christina Binkley, The New Yorker, "Sterling Ruby’s Mixed Media," 2 Sep. 2019 In addition, the city has budgeted for the installation of a new exhaust system, a new filter and a sub-grade surge chamber. San Diego Union-Tribune, "One of the city’s oldest public pools is slated to get millions in mandatory fixes," 30 Aug. 2019 The game of football has been a torture chamber to him physically. Dan Wiederer,, "‘This was all so sudden’: The inside story on how Andrew Luck’s retirement news stunned the Bears and Colts fans as it spread across Lucas Oil Stadium," 25 Aug. 2019 According to Ancient Origins’ Ashley Cowie, researchers are set to conduct a new round of testing on Ñusta this November; until then, her remains will be preserved in a refrigerated chamber at the National Archaeology Museum in La Paz. Meilan Solly, Smithsonian, "500-Year-Old Inca Mummy Repatriated to Bolivia," 22 Aug. 2019 Recent Examples on the Web: Verb Should either chamber work those amendments into the defense bill, that will be part of the negotiations between the House and Senate over the final product. Washington Post, "As fears of war loom, Trump’s Iran policy, arms deals face challenges in Congress," 15 June 2019 The rifle had a loaded magazine inserted, but a round was not chambered., "Man carrying loaded rifle and handgun at Walmart in Missouri says he was testing right to bear arms. Prosecutors have filed a terrorist threat charge against him.," 9 Aug. 2019 The rifle had a loaded magazine inserted, but a round was not chambered. CBS News, "Armed man arrested at Missouri Walmart says he wanted to know if store "honored the Second Amendment"," 10 Aug. 2019 Chapman sets the chambers at different levels and sees over 24 hours which chamber the animal will stay in longest. USA TODAY, "Moon trees, moon film, monk honored: News from around our 50 states," 23 July 2019 The exquisite sound of a round being securely chambered. Azad Cudi, Harper's magazine, "Long Shot," 10 Jan. 2019 Rattlers are personal defense weapons available on the open market and chamber standard 5.56mm rounds and .300 Blackout. Allison Barrie, Fox News, "Weapons upgrade set to make US Special Operations even more deadly," 13 Sep. 2018 Brooklynn Mae Mohler was shot and killed on June 4, 2013 by her best friend, who was playing with her father's gun that was left loaded/chambered, with no safety, in a kitchen cabinet. Cassie Armstrong,, "National SAFE Day: How to observe in Central Florida," 4 June 2018 Tomes was angry about the noise Gaeta's kids were making, and after an argument with the father in the apartment parking lot, Tomes grabbed the rifle from his car, chambered a round and pointed it at Gaeta and Smith. Everton Bailey Jr.,, "Newport man upset over noisy kids accused of shooting 2 neighbors with AK-47 rifle," 16 May 2018

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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Statistics for chamber

Last Updated

2 Nov 2019

Time Traveler for chamber

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

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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

Comments on chamber

What made you want to look up chamber? Please tell us where you read or heard it (including the quote, if possible).


not being in agreement or harmony

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