LOTTOS is a playable word

lotto Scrabble® Dictionary

noun
pl. lottos
a game of chance
37 Playable Words can be made from "LOTTOS"
   2-Letter Words (4 found)
   3-Letter Words (7 found)
   4-Letter Words (16 found)
   5-Letter Words (9 found)
   6-Letter Words (1 found)