\ˈjȯint \

Definition of joint 

(Entry 1 of 3)

1a(1) : the point of contact between elements of an animal skeleton with the parts that surround and support it the hip joint

(2) : node sense 5b

b : a part or space included between two articulations, knots, or nodes

2a : a place where two things or parts are joined a joint between two pieces of timber

b : a space between the adjacent surfaces of two bodies (such as bricks) joined and held together (as by cement or mortar)

c : a fracture or crack in rock not accompanied by dislocation

d : the flexing part of a cover along either spine edge of a book

e : the junction of two or more members of a framed structure

f : a union formed by two abutting rails in a track including the elements (such as bars and bolts) necessary to hold the abutting rails together

g : an area at which two ends, surfaces, or edges are attached

3a : a shabby or disreputable place of entertainment a cheap joint

b : place, establishment a hamburger

c slang : prison sense 2 spent five years in the joint

4 : a marijuana cigarette smoking a joint

5 chiefly British : a large piece of meat for roasting a joint of beef

out of joint

1a of a bone : having the head slipped from its socket

b : at variance

2a : disordered sense 2a

b : being out of humor : dissatisfied losing put him out of joint



Definition of joint (Entry 2 of 3)

1 : united, combined the joint influences of culture and climate

2 : common to two or more: such as

a(1) : involving the united activity of two or more a joint effort

(2) : constituting an activity, operation, or organization in which elements of more than one armed service participate joint maneuvers

(3) : constituting an action or expression of two or more governments joint peace talks

b : shared by or affecting two or more a joint fine

3 : united, joined, or sharing with another (as in a right or status) joint heirs

4 mathematics : being a function of or involving two or more variables and especially random variables a joint probability density function


jointed; jointing; joints

Definition of joint (Entry 3 of 3)

transitive verb

1a : to unite by a joint : fit together joint two boards her elbows and shoulders are jointed wrongIrish Digest

b : to provide with a joint : articulate

c : to prepare (something, such as a board) for joining by planing the edge

2 : to separate the joints of joint a piece of meat

intransitive verb

1 : to fit as if by joints the stones joint neatly

2 : to form joints as a stage in growth used especially of small grains

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Other Words from joint


jointed \ ˈjȯin-​təd \ adjective
jointedly adverb
jointedness noun


jointly adverb

Synonyms & Antonyms for joint

Synonyms: Noun

bastille, big house [slang], bridewell, brig, calaboose, can, clink [slang], cooler, coop, guardroom, hock, hold, hoosegow, jail, jailhouse, jug, lockup, nick [British slang], pen, penitentiary, pokey [slang], prison, quod [British slang], slam, slammer, stir [slang], stockade, tolbooth [Scottish]

Synonyms: Adjective

collaborative, collective, combined, common, communal, concerted, conjoint, conjunct, cooperative, multiple, mutual, pooled, public, shared, united

Antonyms: Adjective

exclusive, individual, one-man, one-sided, one-way, single, sole, solitary, unilateral

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Examples of joint in a Sentence


She's been having pain in her muscles and joints. seal the joints of the pipes


filing a joint tax return They had a joint account at the bank. divorced parents who have joint custody of their child
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Recent Examples on the Web: Noun

The owner of a long-standing soul-food joint brought up Mr Trump’s summit with Kim Jong Un only an hour after a White House announcement on the subject. The Economist, "The L wordWho is a Democrat?," 12 July 2018 Fontana rose from strip joints in his native Shreveport, Louisiana to the heights of musical history as Presley's first and longtime drummer. Adrian Sainz And Hillel Italie,, "Longtime Elvis Presley drummer D.J. Fontana has died," 14 June 2018 Boneless Wings Gate is an epidemic that stretches from local burger joints to TGI Friday’s corporate office. Jimmy O. Yang, Bon Appetit, "Boneless Wings Are a Lie!!!!," 21 May 2018 Meanwhile, Clifford has crisscrossed America, dancing at airport strip joints and luxe nightclubs, flyover states and the country’s capitals of vice. Matthew Ormseth,, "Stormy Daniels Will Bring Her Show To East Windsor Night Club In June," 16 Apr. 2018 Despite steady improvement in technology and outcomes, replacement joints don’t create superhumans. Robert Weisman,, "Boomers line up for joint replacements, and their expectations are high," 2 Apr. 2018 The Classic Option From New York slice joints to gas station frozen, pizza is obviously the classic late night snack. Paula Forbes, GQ, "The Absolute Best Ways to Deal with Your Drunk Munchies," 4 Mar. 2018 The casinos that the billionaire has built, from The Mirage and Bellagio to Wynn Macau and Wynn Palace, helped transform Las Vegas and Macau from seedy gambling joints into luxury high-roller destinations. The Economist, "Sexual misconduct allegations against Steve Wynn hurt his empire," 3 Feb. 2018 Enthusiasts say that possible benefits of qi gong can include more restful sleep, improved mobility and flexibility, improved balance lessons, healthier skin, more energy and even less pain in joints. Geoff Bruce, Milwaukee Journal Sentinel, "5 things to do in the North Shore this week," 28 Jan. 2018

Recent Examples on the Web: Adjective

Filenko said Round Lake Park police investigated the case in a joint effort with the Lake County Children’s Advocacy Center and the Northeastern Illinois Crime Lab. Jim Newton, Lake County News-Sun, "Gurnee man pleads guilty to attempted predatory sexual assault of girl," 11 July 2018 Durant said, smiling alongside Curry at their joint news conference. Connor Letourneau, San Francisco Chronicle, "A dynasty secured," 13 June 2018 Americans for the Arts also coordinates Creative Forces: The NEA Military Healing Arts Network, a joint project of the U.S. Defense Department and the NEA. Matthew J. Palm,, "'Vet Voices' uses theater to come to veterans' aid," 12 July 2018 To read other stories in this joint project, please click here. Eam Asaduzzaman And Shababa Iqbal, The Christian Science Monitor, "School in Bangladesh builds confidence for autistic students – and their parents," 10 July 2018 The Little White School Museum is a joint project of the Oswegoland Heritage Association and the Oswegoland Park District. Staff Report, Aurora Beacon-News, "Museum highlights work of authors from Oswego," 9 July 2018 This third trip is a joint project of the museum and Segundo Ruiz Belvis. Martha Bayne, Chicago Reader, "Arts / Performing Arts / Visual Art / Theater Y No Había Luz brings the voices of post-Maria Puerto Rico to Chicago," 9 July 2018 Acknowledging existing sanctions, Seoul has refrained from offering joint economic projects, which Pyongyang wants the most, and built its engagement around sports, cultural and humanitarian programs. Kim Tong-hyung, Fox News, "Fate of inter-Korean detente hangs on nuclear talks," 5 July 2018 The Helix team based at St Mary’s hospital in London is a joint project of Imperial College London and the Royal College of Art. The Economist, "Hospitals are learning from industry how to cut medical errors," 28 June 2018

Recent Examples on the Web: Verb

With today’s announcement, Bird has once again asked other dockless transit companies to joint them in taking the pledge. Patrick Sisson, Curbed, "Scooter startup Bird plans to fund protected bike lanes," 2 Aug. 2018 Rocky River: Area residents are invited to joint the Veterans' Council for Rocky River and Lakewood for a Memorial Day parade that begins at Rocky River High School at 10 a.m. May 28. Linda Gandee/special To,, "Memorial Day parades and remembrance ceremonies coming up in Bay Village, Rocky River and Westlake," 14 May 2018 At each performances, a local celebrities from the audience are called upon to joint the cast of spellers. Laura Demarco,, ""The 25th Annual Putnam County Spelling Bee" is poignant and F-U-N (review)," 21 Apr. 2018 Recently his son West jointed the P&CMA board for a three-year term. William Thornton,, "Hollar inducted into Petroleum & Convenience Marketers HOF," 24 Jan. 2018 Randolph is an instructor flying training hub, Lackland home to Air Force basic training and Fort Sam home to joint medic instruction for the armed services. Sig Christenson, San Antonio Express-News, "Texas cities eye possible government shutdown with anger, frustration," 17 Jan. 2018 The eight legs of the Octopod clock are jointed; the articulations can be unlocked by a button in each leg, and posed in a standing or extended position. Jack Forster,, "Creepy or Incredible? This $36,000 Clock Looks Like a Robot Octopus," 19 Sep. 2017 The two agreed to joint custody last week, PEOPLE confirmed. Aurelie Corinthios,, "Rob Kardashian Skips KUWTK 10th Anniversary Special as Kris Jenner Says He's Doing 'Great'," 25 Sep. 2017 The eight legs of the Octopod clock are jointed Jack Forster,, "Creepy or Incredible? This $36,000 Clock Looks Like a Robot Octopus," 19 Sep. 2017

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


13th century, in the meaning defined at sense 1a(1)


14th century, in the meaning defined at sense 1


1530, in the meaning defined at transitive sense 2

History and Etymology for joint


Middle English jointe, from Anglo-French, from joindre — see join entry 1


Middle English, from Anglo-French, from past participle of joindre — see join entry 1


joint entry 1

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Statistics for joint

Last Updated

11 Nov 2018

Look-up Popularity

Time Traveler for joint

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

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More Definitions for joint



English Language Learners Definition of joint

 (Entry 1 of 2)

: a point where two bones meet in the body

: a place where two things or parts are joined

: a particular place



English Language Learners Definition of joint (Entry 2 of 2)

: combining the work of two or more people or groups of people

: done by or involving two or more people

: doing something together


\ˈjȯint \

Kids Definition of joint

 (Entry 1 of 2)

1 : a point where two bones of the skeleton come together usually in a way that allows motion The knee is a joint.

2 : a place where two things or parts are joined The pipe has a leaky joint.

3 : a part of a plant stem where a leaf or branch develops

4 : a business establishment a fried chicken joint

Other Words from joint

jointed \ ˈjȯin-​təd \ adjective



Kids Definition of joint (Entry 2 of 2)

1 : joined together The joint effect of wind and rain caused erosion.

2 : done by or shared by two or more a joint bank account

Other Words from joint

jointly adverb


\ˈjȯint \

Medical Definition of joint 

: the point of contact between elements of an animal skeleton whether movable or rigidly fixed together with the surrounding and supporting parts (as membranes, tendons, or ligaments) the capsule of the shoulder joint

out of joint
of a bone

: having the head slipped from its socket

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Legal Definition of joint 

1 : common to two or more: as

a : involving the combined activity or negligence of two or more a joint tort — see also joint tortfeasor — compare several

b : shared by or affecting two or more as a unit a joint account

2 : united, joined, or sharing with another (as in a right or status) joint heirs

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