PHASE is a playable word

phase Scrabble® Dictionary

verb
phased, phasing, phases
to plan or carry out by phases (distinct stages of development)
(adjective) phaseal, phasic
48 Playable Words can be made from "PHASE"
   2-Letter Words (10 found)
   3-Letter Words (20 found)
   4-Letter Words (14 found)
   5-Letter Words (4 found)