Meaning of “take sth in” - Learner’s Dictionary

take sth in

phrasal verb with take uk us /teɪk/ verb [ T ] (past tense took, past participle taken)
UNDERSTAND

to understand something:

It was an interesting lecture but there was just too much to take in.
FILM/BUILDING ETC

to go to see a film, visit an interesting building, etc for enjoyment:

I thought we might get something to eat and then take in a movie.
CLOTHES

to make a piece of clothing narrower

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