groin - noun

the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals

a curved edge formed by two intersecting vaults

a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away

groin - verb

• build with groins

groin - thesaurus

breakwater   bulwark   groyne   inguen   jetty   mole   seawall