COMBUSTING is a playable word

combust Scrabble® Dictionary

verb
combusted, combusting, combusts
to burn
421 Playable Words can be made from "COMBUSTING"
   2-Letter Words (24 found)
   3-Letter Words (99 found)
   8-Letter Words (4 found)
   9-Letter Words (1 found)
   10-Letter Words (1 found)