Bedeutung von “catch up” im Essential American English Dictionary

catch up

phrasal verb with catch us /kætʃ/ verb present participle catching, past tense and past participle caught

to reach the same level or quality as someone or something else:

She’s doing extra work to catch up with the rest of the class.

B1 to learn and discuss the newest facts about something:

Let’s go out for lunch – I want to catch up on all your news.
I’ll catch up with you later.

to reach someone or something that is in front of you by moving faster:

We soon caught up with the car in front.

(Definition von “catch up” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)