Difference between Sentry and Sentinel

What is the difference between Sentry and Sentinel?

Sentry as a noun is a guard, particularly on duty at the entrance to a military base. while Sentinel as a noun is a sentry or guard.

Part of speech: noun

Definition: A guard, particularly on duty at the entrance to a military base.

Part of speech: noun

Definition: A sentry or guard.a unique string of characters recognised by a computer program for processing in a special way; a keyword.

Part of speech: verb

Definition: To watch over as a guard.To post as guard.To post a guard for.

Example sentence: I showed my nana, who lives in Delray, my writeup in the 'New York Times,' and she said, 'When will you be in the 'Sun Sentinel?'

We hope you now know whether to use Sentry or Sentinel in your sentence.