This is the 12378th most frequent Russian word.
караулила
"Караулила" means "was guarding" or "was keeping watch."
In this example, 'караулила' refers to the act of professionally monitoring or patrolling a designated area.
Охранник караулил территорию парка.
The security guard was guarding the park area.
Here, 'караулила' is used in the context of waiting vigilantly or keeping watch near a location.
Она караулила возле двери всю ночь.
She kept watch by the door all night.
The word 'караулила' in this sentence conveys the idea of staying alert or guarding, in this case, the prey.