sentinel [noun]

Definition of sentinel:

a person employed to keep watch for some anticipated event

Synonyms of sentinel:

● Lookout

● Lookout man

● Picket

● Scout

● Sentry

● Spotter

● Watch

● Guard

● Watchman

● Protector


Opposite/Antonyms of sentinel:

● Attacker

● Enemy

● Criminal

● Cause death

● Thief

● Assailant

● Assaulter

● Assault

● Intruder


Sentence/Example of sentinel:

The sentinel stood lounging by the shaft that led down into the underground labor system.