- buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass - the fleshy part of the human body that you sit on; "he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?"
--1 is a kind of body part
--1 is a part of torso, trunk, body - ass - a pompous fool
--2 is a kind of fool, sap, saphead, muggins, tomfool
- ass - hardy and sure-footed animal smaller and with longer ears than the horse
--3 is a kind of equine, equid
--3 is a member of Equus, genus Equus
--3 has particulars:domestic ass, donkey, Equus asinus; jack, jackass; jennet, jenny, jenny ass; wild ass - fuck, fucking, screw, screwing, ass, nooky, nookie, piece of ass, piece of tail, roll in the hay, shag, shtup - slang terms for sexual intercourse
--4 is a kind of sexual intercourse, intercourse, sex act, copulation, coitus, coition, sexual congress, congress, sexual relation, relation, carnal knowledge
- ass - hardy and sure-footed animal smaller and with longer ears than the horse