This is the 3041st most frequent Russian word.
заработать
To earn.
This sentence uses 'заработала' (past tense of 'заработать') to describe earning money through work.
Моя сестра заработала много денег на своей новой работе.
My sister earned a lot of money at her new job.
In this context, 'заработать' is used metaphorically to represent gaining respect through effort.
Он старается заработать уважение своих коллег.
He is trying to earn the respect of his colleagues.
Here, 'заработать' implies achieving or gaining the necessary experience for a qualification.