What does "Sentinel" mean?


(n.) A marine crab (Podophthalmus vigil) native of the Indian Ocean, remarkable for the great length of its eyestalks; -- called also sentinel crab (n.) One who watches or guards; specifically (Mil.), a soldier set to guard an army, camp, or other place, from surprise, to observe the approach of danger, and give notice of it; a sentry (n.) Watch; guard (v. t.) To furnish with a sentinel; to place under the guard of a sentinel or sentinels (v. t.) To watch over like a sentinel

Synonyms watch, scout, sentry, lookout, picket, lookout man

Word Family sentinels