SICKNESSES is a playable word

sickness Scrabble® Dictionary

noun
pl. sicknesses
the state of being sick
122 Playable Words can be made from "SICKNESSES"
   2-Letter Words (7 found)
   3-Letter Words (22 found)
   7-Letter Words (5 found)
   8-Letter Words (1 found)
   10-Letter Words (1 found)