SCHOOL is a playable word

school Scrabble® Dictionary

verb
schooled, schooling, schools
to educate in an institution of learning
39 Playable Words can be made from "SCHOOL"
   2-Letter Words (6 found)
   3-Letter Words (13 found)
   4-Letter Words (13 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)