This is the 3395th most frequent Russian word.
поступить
To enroll, to enter, or to act (depending on context).
Here, 'поступить' is used in the sense of enrolling or gaining admission to an educational institution.
Он решил поступить в университет этой осенью.
He decided to enroll in the university this fall.
In this sentence, 'поступить' is used to mean to act or behave in a certain way, making a deliberate choice.
Она всегда старается поступить правильно, даже если это сложно.
She always tries to act correctly, even if it is difficult.
Here, 'поступить' refers to taking action based on a recommendation or decision, illustrating its use in the context of following advice.