SENTINELLED is a playable word

sentinel Scrabble® Dictionary

verb
sentineled, sentineling, sentinels or sentinelled, sentinelling, sentinels
to stand guard
369 Playable Words can be made from "SENTINELLED"
   2-Letter Words (15 found)
   9-Letter Words (2 found)
   10-Letter Words (1 found)
   11-Letter Words (1 found)