fundament

Meanings

• the fundamental assumptions from which something is begun or developed or calculated or explained
• the fleshy part of the human body that you sit on
• lowest support of a structure

Synonyms

arse, ass, backside, base, basis, behind, bottom, bum, buns, butt, buttocks, can, cornerstone, derriere, fanny, foot, foundation, groundwork, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, substructure, tail, tail end, tooshie, tush, understructure