CHOIRBOY is a playable word

choirboy Scrabble® Dictionary

noun
pl. choirboys
a person who sings in a choir (a body of church singers)
60 Playable Words can be made from "CHOIRBOY"
   2-Letter Words (10 found)
   3-Letter Words (28 found)
   4-Letter Words (12 found)
   5-Letter Words (8 found)
   6-Letter Words (1 found)
   8-Letter Words (1 found)