SENTINELING is a playable word

sentinel Scrabble® Dictionary

verb
sentineled, sentineling, sentinels or sentinelled, sentinelling, sentinels
to stand guard
330 Playable Words can be made from "SENTINELING"
   2-Letter Words (13 found)
   9-Letter Words (4 found)
   10-Letter Words (1 found)
   11-Letter Words (1 found)