QUINTILE is a playable word

quintile Scrabble® Dictionary

noun
pl. quintiles
a portion of a frequency distribution
74 Playable Words can be made from "QUINTILE"
   2-Letter Words (13 found)
   3-Letter Words (20 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)