WHOOSISES is a playable word

whoosis Scrabble® Dictionary

noun
pl. whoosises
an object or person whose name is not known
102 Playable Words can be made from "WHOOSISES"
   2-Letter Words (17 found)
   3-Letter Words (27 found)
   6-Letter Words (7 found)
   7-Letter Words (4 found)
   8-Letter Words (2 found)
   9-Letter Words (1 found)