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sentinel - Meaning and Examples

Meaning of 'sentinel' (Webster Dictionary)

1 . Sentinel [ 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.
- Watch; guard.
- A marine crab (Podophthalmus vigil) native of the Indian Ocean, remarkable for the great length of its eyestalks; -- called also sentinel crab.
2 . Sentinel [ v. t.]
- To watch over like a sentinel.
- To furnish with a sentinel; to place under the guard of a sentinel or sentinels.