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sentinel
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1sen·ti·nel

noun \ˈsent-nəl, ˈsen-tə-nəl\

Definition of SENTINEL

: sentry
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Examples of SENTINEL

  1. <a lone sentinel kept watch over the fort>

Origin of SENTINEL

Middle French sentinelle, from Old Italian sentinella, from sentina vigilance, from sentire to perceive, from Latin
First Known Use: 1579

Related to SENTINEL

Synonyms
custodian, guardian, keeper, lookout, minder, picket, guard, sentry, warden, warder, watch, watcher, watchman

Other Military Terms

bivouac, logistics, petard, salient, sally, supernumerary, tactical

2sentinel

transitive verb
sentineled or sentinelledsentinel·ing or sentinel·ling

Definition of SENTINEL

1
: to watch over as a sentinel
2
: to furnish with a sentinel
3
: to post as sentinel

First Known Use of SENTINEL

1593

Other Military Terms

bivouac, logistics, petard, salient, sally, supernumerary, tactical

sen·ti·nel

adjective \ˈsent-ən-əl\   (Medical Dictionary)

Medical Definition of SENTINEL

: being an individual or part of a population potentially susceptible to an infection or infestation that is being monitored for the appearance or recurrence of the causative pathogen or parasite

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