knee
Americannoun
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knees
plural
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Anatomy. the joint of the leg that allows for movement between the femur and tibia and is protected by the patella; the central area of the leg between the thigh and the lower leg.
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Zoology. the corresponding joint or region in the hind leg of a quadruped; stifle.
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a joint or region likened to this but not anatomically homologous with it, as the tarsal joint of a bird, the carpal joint in the forelimb of the horse or cow, etc.
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the part of a garment covering the knee.
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something resembling a bent knee, especially a rigid or braced angle between two framing members.
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Also called hip, shoulder. Furniture. the inward curve toward the top of a cabriole leg.
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Building Trades.
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the junction of the top and either of the uprights of a bent.
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a curved member for reinforcing the junction of two pieces meeting at an angle.
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Also called kneeler. a stone cut to follow a sharp return angle.
verb (used with object)
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knees,
present (3rd person singular)
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kneed,
past participle, past
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kneeing
present participle
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to strike or touch with the knee.
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to secure (a structure, as a bent) with a knee.
verb (used without object)
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knees,
present (3rd person singular)
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kneed,
past participle, past
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kneeing
present participle
idioms
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take a knee, to kneel on one knee, usually with the opposite leg also bent at a 90-degree angle and placed forward with the foot on the ground, as in sports or as a posture in protests and demonstrations: Organizers are coordinating so the crowds at every state capitol will take a knee in protest of racial injustice simultaneously, across time zones.
Our soccer team would take a knee if a player on either team was injured.
Organizers are coordinating so the crowds at every state capitol will take a knee in protest of racial injustice simultaneously, across time zones.
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bring someone to his / her knees, to force someone into submission or compliance.
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on one's / its knees,
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in a supplicatory position or manner.
I came to him on my knees for the money.
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in a desperate or declining condition.
The country's economy is on its knees.
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cut (someone) off at the knees, to squelch or humiliate (a person) suddenly and thoroughly.
The speaker cut the heckler off at the knees.
noun
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Technical name: genu. the joint of the human leg connecting the tibia and fibula with the femur and protected in front by the patella
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the area surrounding and above this joint
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(modifier) reaching or covering the knee
knee breeches
knee socks
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a corresponding or similar part in other vertebrates
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the part of a garment that covers the knee
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the upper surface of a seated person's thigh
the child sat on her mother's knee
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anything resembling a knee in action, such as a device pivoted to allow one member angular movement in relation to another
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anything resembling a knee in shape, such as an angular bend in a pipe
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any of the hollow rounded protuberances that project upwards from the roots of the swamp cypress: thought to aid respiration in waterlogged soil
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to kneel or submit
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to force someone into submission
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to cause something to be in a weakened or impoverished state
verb
Other Word Forms
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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kneesimple
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kneessimple
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have kneedperfect
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has kneedperfect
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am kneeingprogressive
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are kneeingprogressive
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is kneeingprogressive
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have been kneeingperfect progressive
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has been kneeingperfect progressive
Past
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kneedsimple
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had kneedperfect
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was kneeingprogressive
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were kneeingprogressive
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had been kneeingperfect progressive
Future
Etymology
Origin of knee
First recorded before 900; Middle English kne, cne, knei, cneo, Old English cnēo(w); cognate with German Knie, Dutch knie, Old Norse knē, Gothic kniu, Latin genu, Greek góny, Sanskrit jānu, Hittite genu, all meaning “knee”
Explanation
Your knee is the joint in your leg that joins your thigh with your shin, making it possible for you to bend your leg. Without knees, you'd walk like a Barbie doll on very stiff legs. The knee connects your tibia, or shinbone, to your femur, or thighbone. Although their bodies are arranged in different ways, there are other animals with knees, including horses, donkeys, giraffes, and deer. You can also use the word knee to mean the part of your pants that covers your actual knee: "I always get a hole in the knee of my jeans." A "knee-slapper" is a joke so funny it makes you laugh out loud.
Vocabulary lists containing knee
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
It forces your ankle, knee and hip joints to quickly adjust their movements, keeping them engaged and flexible.
From Science Daily ● Aug. 16, 2026
He missed much of the 2024-25 campaign after sustaining a serious knee injury, and parts of last season were disrupted by a hamstring issue.
From BBC ● Aug. 16, 2026
After Ohtani received a lubricating Orthovisc injection in his knee at the beginning of the All-Star break, the Dodgers hoped he would pitch against the Philadelphia Phillies on July 22.
From Los Angeles Times ● Aug. 15, 2026
One player who will be absent though is Scotland's Robert MacIntyre, who withdrew prior to the start of play on Friday with a knee injury.
From BBC ● Aug. 14, 2026
Daniel suggested, then leaned over to Zeke’s knee.
From "Chronicles of a Lizard Nobody" by Patrick Ness
Cycling may also be beneficial for your joints, particularly your knees.
From Science Daily ● Aug. 16, 2026
Simon explained in her statement that she experienced arthritis in both of her knees and one hip prior to receiving her diagnosis.
From Los Angeles Times ● Jul. 27, 2026
The man in front of us dropped to his knees, threw his hands to the sky, and screamed that he never thought he would live to see his country score in a World Cup.
From The Wall Street Journal ● Jul. 24, 2026
Skipping the trip while the knees still work.
From MarketWatch ● Jul. 16, 2026
They reached a fallen oak bridging the river, and crawled over it on their hands and knees.
From "Wolf Brother" by Michelle Paver
Redick said Doncic was injured when he was kneed by Clippers guard Bagdan Bogdanovic during Saturday night’s loss at Intuit Dome.
From Los Angeles Times ● Dec. 22, 2025
She said she kneed him after an encounter that lasted several minutes and fled the store.
From Washington Times ● May 8, 2023
Knicks: Randle was kneed in the stomach by Mitchell Robinson in the fourth quarter as the New York teammates battled for a rebound.
From Seattle Times ● Dec. 29, 2022
Bass suffered a severe neck injury in Week 8 of the 1975 season when he was kneed in the head while tackling New York Giants running back Joe Dawkins.
From Washington Post ● Sep. 8, 2022
I was so anxious to get past them I accidentally kneed Kelli in the thigh.
From "The Battle of the Labyrinth" by Rick Riordan
The NHL’s department of player safety fined Hathaway $5,000 for kneeing, the maximum amount allowed under the collective bargaining agreement.
From Seattle Times ● Oct. 13, 2023
They’ll likely recall winger Arthur Kaliyev from the AHL so he can begin serving the last two games of his four-game suspension for a training camp kneeing infraction.
From Los Angeles Times ● Oct. 10, 2023
Orlov was back after serving a two-game suspension for kneeing Winnipeg’s Nikolaj Ehlers, who is on long-term injured reserve.
From Washington Post ● Jan. 24, 2022
Washington Capitals defenseman Dmitry Orlov has been suspended two games for kneeing Winnipeg Jets forward Nikolaj Ehlers.
From Washington Times ● Jan. 19, 2022
Neel kept kneeing and elbowing his way forward, steadying the flashlight as he pushed away branches and roots.
From "Tiger Boy" by Mitali Perkins
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
