MOSAIC is a playable word

mosaic Scrabble® Dictionary

verb
mosaicked, mosaicking, mosaics
to form into a mosaic (a type of inlaid surface decoration)
61 Playable Words can be made from "MOSAIC"
   2-Letter Words (12 found)
   3-Letter Words (23 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)