- A person who, or thing that, protects or watches over something
The prison guard unlocked the door of the cell. After completing the repairs, he replaced the sump guard.
guard, guarded, guarded
- (military) A going of the rounds along the chain of sentinels and between the posts, by a guard, usually consisting o...
Four members of the squadron were on patrol.
uncountable · patrol, patroled, patroled
- A sentry, watch, or guard
sentinel animals can be used to explore endemic diseases.
sentinel, sentineled, sentineled
- A permanent military post
garrison, garrisoned, garrisoned
- (idiomatic) To guard and protect
She stayed up all night to watch over the sick infant.
watch over, watch overed, watch overed