GLOAT is a playable word

gloat Scrabble® Dictionary

verb
gloated, gloating, gloats
to regard with great or excessive satisfaction
30 Playable Words can be made from "GLOAT"
   2-Letter Words (8 found)
   3-Letter Words (14 found)
   4-Letter Words (7 found)
   5-Letter Words (1 found)