CLIMAX is a playable word

climax Scrabble® Dictionary

verb
climaxed, climaxing, climaxes
to reach a high or dramatic point
35 Playable Words can be made from "CLIMAX"
   2-Letter Words (9 found)
   3-Letter Words (12 found)
   4-Letter Words (10 found)
   5-Letter Words (3 found)
   6-Letter Words (1 found)