Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fundament

3 senses of fundament

Sense 1
basis, base, foundation, fundament, groundwork, cornerstone -- (the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture")
       => assumption, supposition, supposal -- (a hypothesis that is taken for granted; "any society is built upon certain assumptions")

Sense 2
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?")
       => body part -- (any part of an organism such as an organ or extremity)

Sense 3
foundation, base, fundament, foot, groundwork, substructure, understructure -- (lowest support of a structure; "it was built on a base of solid rock"; "he stood at the foot of the tower")
       => support -- (supporting structure that holds up or provides a foundation; "the statue stood on a marble support")