cham·ber | \ˈchām-bər \

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\-b(ə-)riŋ \

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 \-bərd \ adjective

Examples of chamber in a Sentence


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.


chambered the lost hikers in the barn until the next morning
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Recent Examples on the Web: Noun

As opinions mounted, the binders stacked up in the kitchenette in Kavanaugh’s chambers. Brian Bennett, Time, "How Brett Kavanaugh Could Change the Supreme Court—and America," 12 July 2018 It was installed in June in conjunction with the chamber's Cruise Night event, Cobb said. Dennis Sullivan, Daily Southtown, "New mural in Crete opens a window into historic building's past," 6 July 2018 The president suggested Senate Democrats would use the chamber's filibuster rule, which requires 60 votes for legislation to advance, to scuttle any bill that emerged from the House. Anchorage Daily News, "GOP immigration bills backed by Trump appear headed for defeat," 21 June 2018 At least five of the chamber's 98 legislators won't be in Columbus for Wednesday's meeting because of vacation or other excuses. Jessie Balmert,, "After FBI probe, GOP fight & lawmaking backlog, Ohio House might finally pick new speaker," 5 June 2018 The chamber's Government Affairs Committee offers the following positions on these measures on the June 5 ballot: Prop. Daily Pilot Staff,, "Political Landscape: Newport chamber lists positions on ballot propositions," 29 May 2018 Al-Sadr, whose followers fought U.S. forces in Iraq following the 2003 invasion, won 54 of the chamber's 329 seats. Fox News, "Iraq's al-Sadr says next government will be 'inclusive'," 20 May 2018 Reservations are not required, but encouraged by going to the chamber's website, Joanne Berger Dumound/special To,, "Art creativity thrives in Olmsted Falls schools and community: Olmsted Dates and Data," 14 May 2018 The chamber's Suburban Professionals Achieving Real Change (SPARC) young professionals program has also been taking off, with more than 80 members signed up already. Steve Smith, Courant Community, "Kesler Hosts Business After Hours," 10 May 2018

Recent Examples on the Web: Verb

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 Special operations snipers will replace their 7.62 bullets with a new round favored by civilian precision rifle shooters, while the Army’s next-generation squad machine gun will be chambered in a new caliber using new casing technology. Kyle Mizokami, Popular Mechanics, "U.S. Army Getting New Machine Gun Round, Special Ops Getting New Sniper Bullet," 10 May 2018 The officer reaches for his semiautomatic pistol, and in a quick action, pulls back the pistol slide to chamber a round, a video shows. Alex Horton,, "An off-duty police officer thought a man stole Mentos. So he drew his gun.," 6 May 2018 Benefits chamber scholarships, events and projects. Ramona Sentinel, "Our Town Calendar: April 12-17," 11 Apr. 2018 Shotguns can be single-shot weapons, pump action weapons in which a single pump chambers a round, and semi-automatic. Kyle Mizokami, Popular Mechanics, "What a Gun Is," 7 Mar. 2018 Of those, 87 were loaded, and nearly half of the guns loaded with ammo also had a live round chambered, ready to fire. Fredrick Kunkle, Washington Post, "TSA sets weekly record for finding firearms in carry-on bags," 20 Feb. 2018 Related: Reilly said the weapon is not functional in its current condition but had one live round chambered, and additional ammunition in the magazine. Jennie Key,, "Boys find AK-47 used to shoot Warren County deputy," 29 Jan. 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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Phrases Related to chamber

decompression chamber

Statistics for chamber

Last Updated

19 Oct 2018

Look-up Popularity

Time Traveler for chamber

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

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More Definitions for chamber



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 \

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 \

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).


a state of commotion or excitement

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