SHOAL is a playable word

shoal Scrabble® Dictionary

adjective
shoaler, shoalest
shallow
verb
shoaled, shoaling, shoals
to become shallow
32 Playable Words can be made from "SHOAL"
   2-Letter Words (11 found)
   3-Letter Words (13 found)
   4-Letter Words (6 found)
   5-Letter Words (2 found)