UPBOILING is a playable word

upboil Scrabble® Dictionary

verb
upboiled, upboiling, upboils
to boil up
118 Playable Words can be made from "UPBOILING"
   2-Letter Words (16 found)
   6-Letter Words (10 found)
   7-Letter Words (4 found)
   9-Letter Words (1 found)