n. In anatomy, the fold or hollow of the body on either side of the belly where the thigh joins the trunk; the oblique depression between the abdominal and the femoral region; the inguinal region or inguen, corresponding to the axilla or armpit.n. In architecture, the curved intersection or arris of simple vaults crossing each other at any angle.n. A wooden breakwater or frame of woodwork constructed across a beach between low and high water to retain sand or mud thrown up by the tide, and to form a protection from the force of the waves to the land lying behind it. Also spelled, archaically, groyne.In architecture, to form into groins; construct in a system of groins.To grunt, as a pig; growl.To murmur; grumble; sound rumblingly.n. Grumbling; pouting; discontent.n. The snout of a swine; a snout; nose.