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English definition of “whether”


conjunction     /ˈweð.ər/ US  //
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's got the time . Anyway , it's a good story , whether or not it's true .Connecting words which express a condition 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's got 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 .Connecting words which express a contrast Grammar:Whether not ifWe use whether and not if after prepositions:Grammar:I doubt if, I don’t know whetherWe use if or whether to introduce clauses after verbs of doubting:Grammar:If, whether: typical errors[talking about a trip to Australia for a year]Grammar:If or whether?Grammar:If and whether: indirect questionsWe can use if or whether to report indirect yes-no questions and questions with or. If is more common than whether:Grammar:WhetherWhether is a conjunction.Grammar:Whether in indirect questionsWe use whether in indirect yes-no questions and questions with or. We can’t leave out whether (or if):Grammar:Whether … orWe use whether … or to introduce a clause giving two options or alternatives:Grammar:Whether … or notWe use whether … or not or whether or not to give an opposite alternative:
(Definition of whether conjunction from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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