sondern
1- but (instead)
- so? / then what? / so you tell me! (interjection)
- to separate / to sunder (verb)
Dictionary wording
- rather, but (instead).
- so?, then what?, so you tell me!
- to separate, to sunder
Er hat sie nicht genommen, sondern ich.
Well, he didn't take it.
Das ist nicht seine Idee, sondern meine.
It's not his idea, it's mine.
Das ist nicht meine Schwester, sondern meine Mutter.
She is not my sister but my mother.