Bedeutung von “which” — Learner’s Dictionary

which

pronoun, determiner us uk /wɪtʃ/
Extra Examples
Which of these books did you want to borrow?Stop dithering and tell me which one you want!Which of these stories shall we cover?Which one do you prefer?Which university did he go to?
CHOICE

A2 used to ask or talk about a choice between two or more things:

Which of these do you like best?
Which way is it to the station?
I just don't know which one to choose.
REFERRING TO SOMETHING

A2 used at the beginning of a relative clause to show what thing is being referred to:

These are principles which we all believe in.
EXTRA INFORMATION

B1 used to give more information about something:

The book, which includes a map, gives you all the information you need about Venice.
GIVING OPINION

B2 used when you give an opinion about what you have just said:

He took us both out for lunch, which I thought was very kind of him.

(Definition von “which” aus dem Cambridge Learner's Dictionary © Cambridge University Press)