Used before the first of two or more coordinates or clauses linked by or:
Allowing that; granting that
Because event X may occur
Used in indirect questions to introduce one alternative:
Find another word for whether. In this page you can discover 18 synonyms, antonyms, idiomatic expressions, and related words for whether, like: either, if, even-if, in-case, if it follows that, doubt, so-long-as, because, as-long-as, therefore and where.