This is the 643rd most frequent Russian word.
наступление
"Наступление" means "offensive," "advance," or "onset."
Here, 'наступление' denotes the occurrence or arrival of a season—spring.
Наступление весны приносит радость всем.
The arrival of spring brings joy to everyone.
In this context, 'наступление' refers to a planned advance or attack in a military setting.
Военное наступление началось на рассвете.
The military offensive began at dawn.
Here, 'наступление' describes the onset or beginning of a specific condition—darkness.