BESTIE is a playable word

bestie Scrabble® Dictionary

noun
pl. besties
a person who someone likes very much
40 Playable Words can be made from "BESTIE"
   2-Letter Words (9 found)
   3-Letter Words (16 found)
   4-Letter Words (10 found)
   5-Letter Words (3 found)
   6-Letter Words (2 found)