Meaning of "answer" in Essential English Dictionary

answer

noun uk /ˈɑːnsər/

A1 something that you say or write back to someone who has asked you a question:

I asked him if he was going, but I didn’t hear his answer.

A2 the act of picking up a telephone or opening a door:

I rang the bell, but there was no answer.

A2 the correct information given as a reply to a question in a test:

Did you get the answer to question six?

B1 a way of stopping a problem:

It’s a big problem, and I don’t know what the answer is.

(Definition of “answer noun” from the Cambridge Essential Dictionary © Cambridge University Press)