Synonyms of FUNDAMENT

noun

1. the fundamental assumptions from which something is begun or developed or calculated or explained

   • BASIS7
   • BASE6
   • FOUNDATION14
   • GROUNDWORK19
   • CORNERSTONE13

2. the fleshy part of the human body that you sit on

   • BUTTOCKS16
   • NATES5
   • ARSE4
   • BUTT6
   • BACKSIDE17
   • BUM7
   • BUNS6
   • CAN5
   • HINDQUARTERS25
   • KEISTER11
   • POSTERIOR11
   • PRAT6
   • REAR4
   • RUMP8
   • STERN5
   • SEAT4
   • TAIL4
   • TUSH7
   • BOTTOM10
   • BEHIND12
   • DERRIERE9
   • FANNY11
   • ASS3

   Also: hind end, rear end, tail end.

   Not playable in Scrabble US: TOOSHIE.

3. lowest support of a structure

   • FOUNDATION14
   • BASE6
   • FOOT7
   • GROUNDWORK19
   • SUBSTRUCTURE16

   Not playable in Scrabble US: UNDERSTRUCTURE.