SCHEME is a playable word

scheme Scrabble® Dictionary

verb
schemed, scheming, schemes
to plan or plot
31 Playable Words can be made from "SCHEME"
   2-Letter Words (7 found)
   3-Letter Words (9 found)
   4-Letter Words (10 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)