The definition of a sentinel is a person or animal that keeps guard.noun
An example of a sentinel is a security worker.
To sentinel is defined as to watch over or to provide with a guard.verb
An example of sentinel is to keep watch over a museum at night.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Origin: Fr sentinelle < It sentinella, ult. < L sentire, to feel, sense
Used by arrangement with John Wiley & Sons, Inc.
- To watch over as a guard.
- To provide with a guard.
- To post as a guard.
Origin: French sentinelle, from Italian sentinella, probably from Old Italian sentina, vigilance, from sentire, to watch, from Latin sentīre, to feel; see sent- in Indo-European roots.