The noun has 2 meanings:
Meaning #1:
the fleshy part of the human body that you sit on
Synonyms: buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass
Meaning #2:
the part of a quadruped that corresponds to the human buttocks
Synonyms: croup, croupe, rump
