Definition of sentinel

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Sentinel (n.) A marine crab (Podophthalmus vigil) native of the Indian Ocean, remarkable for the great length of its eyestalks; -- called also sentinel crab..

Lern More About Sentinel

Patrol :: Patrol (v. i.) A going of the rounds along the chain of sentinels and between the posts, by a guard, usually consisting of three or four men, to insure greater security from attacks on the outposts..
Sentry :: Sentry (n.) Guard; watch, as by a sentinel..
Challenge :: Challenge (n.) To question or demand the countersign from (one who attempts to pass the lines); as, the sentinel challenged us, with Who comes there?.
Sentineled :: Sentineled (imp. & p. p.) of Sentine.
Qui Vive :: Qui vive () The challenge of a French sentinel, or patrol; -- used like the English challenge: Who comes there?.
Reveille :: Reveille (n.) The beat of drum, or bugle blast, about break of day, to give notice that it is time for the soldiers to rise, and for the sentinels to forbear challenging..
Vedette :: Vedette (n.) A sentinel, usually on horseback, stationed on the outpost of an army, to watch an enemy and give notice of danger; a vidette..
Watchman :: Watchman (n.) One set to watch; a person who keeps guard; a guard; a sentinel.
Watch :: Watch (v. i.) The period of the night during which a person does duty as a sentinel, or guard; the time from the placing of a sentinel till his relief; hence, a division of the night..
Sentry :: Sentry (n.) A soldier placed on guard; a sentinel.
Corporal :: Corporal (n.) A noncommissioned officer, next below a sergeant. In the United States army he is the lowest noncommissioned officer in a company of infantry. He places and relieves sentinels..
Cordon :: Cordon (n.) A line or series of sentinels, or of military posts, inclosing or guarding any place or thing..
Sentinel :: Sentinel (v. t.) To watch over like a sentinel.
Stational :: Station (v. t.) To place; to set; to appoint or assign to the occupation of a post, place, or office; as, to station troops on the right of an army; to station a sentinel on a rampart; to station ships on the coasts of Africa..
Sentinel :: Sentinel (v. t.) To furnish with a sentinel; to place under the guard of a sentinel or sentinels.
Round :: Round (n.) A walk performed by a guard or an officer round the rampart of a garrison, or among sentinels, to see that the sentinels are faithful and all things safe; also, the guard or officer, with his attendants, who performs this duty; -- usually in the plural..
Sentineling :: Sentineling (p. pr. & vb. n.) of Sentine.
Watchtower :: Watchtower (n.) A tower in which a sentinel is placed to watch for enemies, the approach of danger, or the like..
Station :: Station (n.) The spot or place where anything stands, especially where a person or thing habitually stands, or is appointed to remain for a time; as, the station of a sentinel..
Echauguette :: Echauguette (n.) A small chamber or place of protection for a sentinel, usually in the form of a projecting turret, or the like. See Castle..
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