Meaning of “get in” - Learner’s Dictionary

get in

phrasal verb with get uk us /ɡet/ verb (present participle getting, past tense got, past participle got, US gotten)
ENTER

B1 to succeed in entering a place, especially a building:

They must have got in through the bathroom window.
PERSON ARRIVING

B1 to arrive at your home or the place where you work:

What time did you get in last night?
VEHICLE ARRIVING

B1 If a train or other vehicle gets in at a particular time, that is when it arrives:

Our flight's getting in later than expected.
BE CHOSEN

B1 to succeed in being chosen or elected for a position in a school or other organization:

He wanted to go to Oxford University but he didn't get in.

(Definition of “get in” from the Cambridge Learner’s Dictionary © Cambridge University Press)