GNOMONIC is a playable word

gnomon Scrabble® Dictionary

noun
pl. gnomons
a part of a sundial
(adjective) gnomonic
61 Playable Words can be made from "GNOMONIC"
   2-Letter Words (9 found)
   3-Letter Words (20 found)
   4-Letter Words (11 found)
   5-Letter Words (9 found)
   6-Letter Words (9 found)
   7-Letter Words (1 found)
   8-Letter Words (2 found)