\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

England right back Kieran Trippier left the semifinal with a groin injury, and Kane is believed to have played through through an injury for at least three games. Katherine Fominykh,, "World Cup final weekend: how to watch the matchups, plus time and odds," 14 July 2018 The Bucks just wrapped up a trio of summer league games in Las Vegas, though DiVincenzo was held out of all three contests with a groin injury. Jr Radcliffe, Milwaukee Journal Sentinel, "Bucks rookie Donte DiVincenzo has $3.71 to his name ... for now," 10 July 2018 Reimer also suffered a groin injury and has never started more than 42 games in his career. Matthew Defranks,, "Panthers can plug secondary needs when NHL free agency opens Sunday," 1 July 2018 People with increasing numbers of skin tags or who notice their skin darkening around the neck and in armpits or groin folds should check with their doctors. Houston Chronicle, "Vicks VapoRub for poison ivy itch," 8 July 2018 Cain has been on the disabled list since June 26 with a left-groin strain. Todd Rosiak, Milwaukee Journal Sentinel, "Braves 5, Brewers 1: Offense has no answer for Anibal Sánchez," 7 July 2018 Video shows Koko grabbing for Williams’ chest area and Shatner’s groin. Washington Post, "Koko the gorilla used smarts, empathy to help change views," 21 June 2018 Video shows Koko grabbing for Williams' chest area and Shatner's groin., "Koko the Gorilla Used Smarts, Empathy to Help Change Views," 21 June 2018 Rooney was accused of stamping on Carvalho’s groin. Joshua Robinson, WSJ, "The ‘Hand of God’ Delusion: World Cup History on Further Review," 14 June 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

24 Sep 2018

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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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).


a state of commotion or excitement

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