Thesaurus: sentinel

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Definitions

1. 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.
2. n. Watch; guard.
3. n. A marine crab (Podophthalmus vigil) native of the Indian Ocean, remarkable for the great length of its eyestalks; -- called also sentinel crab.
4. v. t. To watch over like a sentinel.
5. v. t. To furnish with a sentinel; to place under the guard of a sentinel or sentinels.
6. n. a person employed to keep watch for some anticipated event
7. 1. 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. The sentinels who paced the ramparts. Macaulay. 2. Watch; guard. [Obs.] "That princes do keep due sentinel." Bacon. 3. (Zoöl.) A marine crab (Podophthalmus vigil) native of the Indian Ocean, remarkable for the great length of its eyestalks; -- called also sentinel crab. 1. To watch over like a sentinel. "To sentinel enchanted land." [R.] Sir W. Scott. 2. To furnish with a sentinel; to place under the guard of a sentinel or sentinels.
8. A marine crab (Podophthalmus vigil) native of the Indian Ocean,remarkable for the great length of its eyestalks; -- called alsosentinel crab.
9. n:100 n a person employed to keep watch for some anticipated event