WHETHER definition: 1. (used especially in reporting questions and expressing doubts) if, or not: 2. (used to…. Learn more.

You use whether when you are talking about a choice or doubt between two or more alternatives. To this day, it's unclear whether he shot himself or was murdered. Whether it turns out to be a good …

The meaning of WHETHER is if it is or was true that. How to use whether in a sentence.

whether or no, under whatever circumstances; regardless. He threatens to go whether or no.

Definition of whether conjunction in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Did you ask whether [= if] they were going? I don't know whether they were invited.

You can use a clause beginning with whether after a reporting verb such as know, ask, or wonder. You use whether when you are mentioning two or more alternatives.

whether /ˈwɛðə/ conj (subordinating) used to introduce an indirect question or a clause after a verb expressing or implying doubt or choice in order to indicate two or more alternatives, the second or …

Whether is a conjunction. We use whether in indirect yes-no questions and questions with or. We can’t leave out whether (or if): They asked me whether (if) I was tired. (original question: Are you tired?) …

Jan 20, 2026 · The main verb in adverbial clauses with whether is sometimes in the subjunctive mood, especially if the verb is be: I shall be glad to play any instrument, whether it be a violin or a trumpet.