DOMINO is a playable word

domino Scrabble® Dictionary

noun
pl. dominos or dominoes
a small mask
36 Playable Words can be made from "DOMINO"
   2-Letter Words (10 found)
   3-Letter Words (15 found)
   4-Letter Words (8 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)