APEXES is a playable word

apex Scrabble® Dictionary

noun
pl. apexes or apices
the highest point
36 Playable Words can be made from "APEXES"
   2-Letter Words (7 found)
   3-Letter Words (15 found)
   4-Letter Words (11 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)