BULWARK is a playable word

bulwark Scrabble® Dictionary

verb
bulwarked, bulwarking, bulwarks
to fortify with a defensive wall
49 Playable Words can be made from "BULWARK"
   2-Letter Words (7 found)
   3-Letter Words (18 found)
   5-Letter Words (3 found)
   7-Letter Words (1 found)