\ ˈgrȯin \

Definition of groin

 (Entry 1 of 2)

1 : the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh also : the region of this line
2a : the projecting curved line along which two intersecting vaults meet
b : a rib that covers this edge
3 : a rigid structure built out from a shore to protect the shore from erosion, to trap sand, or to direct a current for scouring a channel


groined; groining; groins

Definition of groin (Entry 2 of 2)

transitive verb

: to build or equip with groins

Illustration of groin

Illustration of groin


groin 2a

In the meaning defined above

Examples of groin in a Sentence

Recent Examples on the Web: Noun

Rodgers is currently battling a groin injury, but expected to play in Week 16. Michael Salfino, WSJ, "Aaron Rodgers’s Homesick Season," 18 Dec. 2018 Those who have more advanced anal cancer might notice swollen lymph nodes in their groin. Korin Miller, SELF, "‘Desperate Housewives’ Star Marcia Cross Reveals She’s in Recovery After Anal Cancer Treatment," 28 Sep. 2018 Winkler injured his groin in the first round after a rough landing and was in agony going into the second round. Daniel E. Slotnik, New York Times, "Hans Günter Winkler, Olympic Champion Equestrian, Dies at 91," 11 July 2018 Braun had been bothered by lower back tightness and did not start the previous two games, and Thames sat out Monday after coming out of the game Sunday in New York with a slight groin issue. Tom Haudricourt, Milwaukee Journal Sentinel, "Notes: Brewers get healthier with Yelich off the DL and Braun and Thames back in the lineup," 17 Apr. 2018 Losing Varlamov — who has a history of groin issues — would be a blow for an Avalanche squad that remains in contention a season after finishing with a league-worst 48 points. Pat Graham,, "Blackhawks routed 5-0 by Avalanche," 31 Mar. 2018 Seattle on Friday declared only two players as doubtful for Sunday’s game — backup cornerback Neiko Thorpe (groin) and backup offensive lineman Jordan Simmons (calf). Bob Condotta, The Seattle Times, "K.J. Wright, Ed Dickson on track to make season debut Sunday; Seahawks announce jersey patch honoring Paul Allen," 26 Oct. 2018 If that person starts to approach or attack you, Marcott says prepare to punch, kick, and strike the vital target areas, including the eyes, throat, and groin. Mekita Rivas, Glamour, "Mollie Tibbetts' Killing Isn't About Women Jogging. It's About Violence Against Us.," 24 Aug. 2018 Lefty Wade Miley, who had a spot in the rotation won before straining a groin muscle at the end of camp, missed a month, returned and then strained an oblique in his second outing. Tom Haudricourt, Milwaukee Journal Sentinel, "Haudricourt: Brewers' depth has been huge in overcoming series of injuries this season," 6 July 2018

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


circa 1532, in the meaning defined at sense 1


circa 1816, in the meaning defined above

History and Etymology for groin


alteration of Middle English grynde, from Old English, abyss; akin to Old English grund ground

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Statistics for groin

Last Updated

15 Jan 2019

Look-up Popularity

Time Traveler for groin

The first known use of groin was circa 1532

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More Definitions for groin



English Language Learners Definition of groin

: the area of the body where your legs come together


\ ˈgrȯin \

Kids Definition of groin

: the fold or area where the abdomen joins the thigh


\ ˈgrȯin \

Medical Definition of groin

: the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh also : the region of this line

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More from Merriam-Webster on groin

Rhyming Dictionary: Words that rhyme with groin

Spanish Central: Translation of groin

Nglish: Translation of groin for Spanish Speakers

Britannica English: Translation of groin for Arabic Speakers

Comments on groin

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


to gather or build up little by little

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