This is the 2416th most frequent Russian word.
перешла
"Перешла" means "crossed" or "moved over" (past tense, feminine form).
Describing movement across a road.
Она перешла дорогу.
She crossed the road.
Indicating the transition to a different job.
После долгих раздумий, она перешла на другую работу.
After much contemplation, she switched to another job.
Referring to the metaphorical transfer of the story.