fundament

Meaning

noun

1. the fundamental assumptions from which something is begun or developed or calculated or explained
   “the whole argument rested on a basis of conjecture”
2. the fleshy part of the human body that you sit on
   “he deserves a good kick in the butt”
3. lowest support of a structure
   “it was built on a base of solid rock”

Synonyms for fundament

• basis
• base
• foundation
• groundwork
• cornerstone
• buttocks
• nates
• arse
• butt
• backside
• bum
• buns
• can
• hindquarters
• hind end
• keister
• posterior
• prat
• rear
• rear end
• foot
• substructure
• understructure