What does Sentinel mean?

Definitions for Sentinel
ˈsɛn tn l, -tə nlSen·tinel

Here are all the possible meanings and translations of the word Sentinel.

Princeton's WordNet

  1. lookout, lookout man, sentinel, sentry, watch, spotter, scout, picketnoun

    a person employed to keep watch for some anticipated event


  1. sentinelnoun

    A sentry or guard.

  2. sentinelnoun

    a unique string of characters recognised by a computer program for processing in a special way; a keyword.

    The uE000147383uE001nowikiuE000147384uE001 tag is a sentinel that suspends web-page processing and displays the subsequent text literally.

  3. sentinelverb

    To watch over as a guard.

    He sentineled the north wall.

  4. sentinelverb

    To post as guard.

    He sentineled him on the north wall.

  5. sentinelverb

    To post a guard for.

    He sentineled the north wall with just one man.

Samuel Johnson's Dictionary

  1. Sentinelnoun

    One who watches or keeps guard to prevent surprise.

    Etymology: sentinelle, French, from sentio, Lat.

    Norfolk, hie thee to thy charge;
    Use careful watch, chuse trusty sentinels. William Shakespeare, R. III.

    Counsellors are not commonly so united, but that one counsellor keepeth sentinel over another; so that if any do counsel out of faction or private ends, it commonly comes to the king’s ear. Francis Bacon, Essays.

    First, the two eyes, which have the seeing pow’r,
    Stand as one watchman, spy, or sentinel,
    Being plac’d aloft, within the head’s high tow’r;
    And though both see, yet both but one thing tell. Davies.

    Love to our citadel resorts,
    Through those deceitful sallyports;
    Our sentinels betray our forts. John Denham.

    The senses are situate in the head, as sentinels in a watch-tower, to receive and convey to the soul the impressions of external objects. John Ray, on the Creation.

    Perhaps they had sentinels waking while they slept; but even this would be unsoldierlike. , Notes on the Odyssey.

Webster Dictionary

  1. Sentinelnoun

    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. Sentinelnoun

    watch; guard

  3. Sentinelnoun

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

  4. Sentinelverb

    to watch over like a sentinel

  5. Sentinelverb

    to furnish with a sentinel; to place under the guard of a sentinel or sentinels

  6. Etymology: [F. sentinelle (cf. It. sentinella); probably originally, a litle path, the sentinel's beat,, and a dim. of a word meaning, path; cf. F. sente path. L. semita; and OF. sentine, sentele, senteret, diminutive words. Cf. Sentry.]


  1. Sentinel

    Sentinels are a fictional variety of mutant-hunting robots, appearing in the Marvel Comics Universe. They are usually portrayed as antagonists to the X-Men. Created by Stan Lee and Jack Kirby, they first appeared in The X-Men #14. According to Marvel canon, Sentinels are programmed to locate mutants and capture or kill them. Though several types of Sentinels have been introduced, the typical Sentinel is three stories tall, capable of flight, projects energy blasts, and can detect mutants. The Sentinels have been featured in several X-Men video games, and played a large role in the 1990s X-Men animated series. Additionally, a simulated version made a brief appearance in the beginning of the 2006 film, X-Men: The Last Stand. In 2009, the Sentinels were ranked by IGN as the 38th Greatest Comic Book Villain of All Time.

Chambers 20th Century Dictionary

  1. Sentinel

    sen′ti-nel, n. a soldier or soldier-marine at a point with the duty of watching for the approach of an enemy, or guarding the gun-park, camp, magazine, or other locality: a sentry.—adj. acting as a sentinel.—v.t. to watch over, as a sentinel.—adj. Sen′tinelled, furnished with a sentinel.—Sentinel crab, a crab of the Indian Ocean with long eye-stalks. [Fr. sentinelle—It. sentinella, a watch, prob. the L. sentinator, one who pumps bilge-water out of a ship—sentina, the hold of a ship. Others explain Fr. sentinelle as a dim. of sentier, a path—Low L. semitarius—L. semita, a footpath.]


  1. Sentinel

    Sentinel's next generation malware detection and protection technology is a unique and revolutionary approach for handling online threats and attacks. By rethinking the entire cycle of detecting malware and online threats, utilizing their proprietary real time behavioral detection engine, and a crowdsourced approach, they have been able to build a product that is able to deal with modern threats in real time and in a very effective manner, thus keeping organizations and individuals safe, even from the most advanced malicious attacks.

Dictionary of Nautical Terms

  1. sentinel

    A soldier, marine, or seaman placed upon any post, to watch and enforce any specific order with which he may be intrusted.

Military Dictionary and Gazetteer

  1. sentinel

    (from the Lat. sentire, “to feel or perceive,” through the Ital. sentinella). A private soldier, marine, or sailor, posted at a point of trust, with the duty of watching the approach of an enemy, or any person suspected of hostile intentions. Sentinels mount guard over dépots of arms, the tents of commanding officers, etc. During the night, each sentinel is intrusted with the “word,” or countersign; and no person, however exalted in position, may attempt to approach or pass him without giving that as a signal. In such case, the sentinel is bound to arrest the intruder, and if necessary to shoot him. It has happened before now that the commander-in-chief of an army has been prisoner in the hands of one of his own sentinels. When an army is in the field, the sentinels are its eyes, for they guard the approaches in every direction some distance in front of the main body of troops. In the event of an attack, they give the alarm, and retire slowly on their supports. There is usually an agreement, tacit or expressed, between commanders that their outlying sentinels shall not fire upon one another, which would only be productive of useless bloodshed. Under martial law, death is the penalty to a sentinel sleeping on post. Sentinels will present arms to general and field-officers, to the officer of the day, and the commanding officer of a post; to all other officers they will carry arms. Staff-officers above the rank of captain are entitled to the same compliments from sentinels as are given to field-officers.

Suggested Resources

  1. sentinel

    Song lyrics by sentinel -- Explore a large variety of song lyrics performed by sentinel on the Lyrics.com website.

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How to pronounce Sentinel?

How to say Sentinel in sign language?


  1. Chaldean Numerology

    The numerical value of Sentinel in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of Sentinel in Pythagorean Numerology is: 8

Examples of Sentinel in a Sentence

  1. Jim Mattis:

    Norway's leadership in the Nordic region and especially up in the Arctic where you serve as NATO's sentinel ... You are definitely contributing beyond your weight class.

  2. Mat Staver:

    John Middleton loved people, and John Middleton loved Jesus. John Middleton was willing to give John Middleton life to share Jesus with the people on North Sentinel island, ever since high school, John Middleton wanted to go to North Sentinel to share Jesus with this indigenous people.

  3. Cicero:

    The eyes like sentinel occupy the highest place in the body.

  4. Michael McCloud:

    Not only are fall-related injuries the leading cause of injury death in older adults, but they often are the sentinel event in the so-called cascade to dependency, beyond the personal devastation, falls-related injuries have a significant societal cost.

  5. Caroline Steinbrecher:

    It wasn’t a mistake, it was sentinel error.

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Translations for Sentinel

From our Multilingual Translation Dictionary

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