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1

sentinel

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noun sen·ti·nel \ˈsent-nəl, ˈsen-tə-nəl\

Definition of sentinel

  1. :  sentry



Examples of sentinel in a sentence

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



Origin and Etymology of sentinel

Middle French sentinelle, from Old Italian sentinella, from sentina vigilance, from sentire to perceive, from Latin


First Known Use: 1579


2

sentinel

transitive verb sen·ti·nel

Definition of sentinel

sentineled

or

sentinelled

sentineling

or

sentinelling

  1. 1 :  to watch over as a sentinel

  2. 2 :  to furnish with a sentinel

  3. 3 :  to post as sentinel



1593

First Known Use of sentinel

1593



SENTINEL Defined for Kids

sentinel

play
noun sen·ti·nel \ˈsen-tə-nəl\

Definition of sentinel for Students

  1. :  sentry




Medical Dictionary

sentinel

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adjective sen·ti·nel \ˈsent-ən-əl\

Medical Definition of sentinel

  1. :  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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