COOLDOWNS is a playable word

cooldown Scrabble® Dictionary

noun
pl. cooldowns
a gradual return of physiological functions to normal levels after strenuous exercise
111 Playable Words can be made from "COOLDOWNS"
   2-Letter Words (9 found)
   3-Letter Words (31 found)
   6-Letter Words (5 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)