Definition of “whether” - English Dictionary

british dictionary

“whether” in British English

See all translations

whetherconjunction

uk /ˈweð.ər/ us /ˈweð.ɚ/

B1 (used especially in reporting questions and expressing doubts) if, or not:

I wasn't sure whether you'd like it.
She asked me whether I was interested in working for her.
I'm wondering whether to have the fish or the beef.
I doubt whether it'll work.
I was merely questioning whether we have the money to fund such a project.
It all depends on whether or not she has the time.
Anyway, it's a good story, whether or not it's true.
whether...or

B1 (used to introduce two or more possibilities) it is not important if:

I'm going, whether she likes it or not.
Someone has to tell her, whether it's you or me.
Let's face it - you're going to be late whether you go by bus or train.

More examples

(Definition of “whether” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“whether” in American English

See all translations

whetherconjunction

us /ˈhweð·ər, ˈweð-/

(used to refer to one or more possibilities or to express uncertainty) if:

I didn’t know whether he was too busy or (whether) he just didn’t want to see me.
I wasn’t sure whether (or not) you’d like it.

Idiom(s)

(Definition of “whether” from the Cambridge Academic Content Dictionary © Cambridge University Press)