Meaning of “whether” - Learner’s Dictionary

whether

conjunction uk us /ˈweðər/
CHOICE

B1 used to talk about a choice between two or more possibilities:

Someone's got to tell her, whether it's you or me.
I didn't know whether or not to go.
IF

B1 if:

I wasn't sure whether you'd like it.

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