CRENEL is a playable word

crenel Scrabble® Dictionary

verb
creneled, creneling, crenels or crenelled, crenelling, crenels
to provide with crenelles
20 Playable Words can be made from "CRENEL"
   2-Letter Words (5 found)
   3-Letter Words (9 found)
   4-Letter Words (4 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)