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

Post :: Post (n.) The piece of ground to which a sentinel's walk is limited.
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..
Patrol :: Patrol (v. i.) To go the rounds along a chain of sentinels; to traverse a police district or beat.
Guard :: Guard (v. t.) A man, or body of men, stationed to protect or control a person or position; a watch; a sentinel..
Sentinelling :: Sentinelling () of Sentine.
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..
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..
Sentinel :: Sentinel (v. t.) To furnish with a sentinel; to place under the guard of a sentinel or sentinels.
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..
Sentinelled :: Sentinelled () of Sentine.
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..
Sentinel :: Sentinel (n.) A marine crab (Podophthalmus vigil) native of the Indian Ocean, remarkable for the great length of its eyestalks; -- called also sentinel crab..
Sentinel :: 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..
Sentineling :: Sentineling (p. pr. & vb. n.) of Sentine.
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?.
Watchword :: Watchword (n.) A word given to sentinels, and to such as have occasion to visit the guards, used as a signal by which a friend is known from an enemy, or a person who has a right to pass the watch from one who has not; a countersign; a password..
Watch :: Watch (v. i.) To be attentive or vigilant; to give heed; to be on the lookout; to keep guard; to act as sentinel.
Post :: Post (v. t.) To assign to a station; to set; to place; as, to post a sentinel..
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