SUBORDINATING CONJUNCTION

A conjunction, such as after, although, as, as if, as long as, as though, because, before, even if, even though, if, if only, in order that, inasmuch as, lest, now that, once, provided, rather than, since, so that, than, that, though, till, unless, until, whatever, when, whenever, where, whereas, wherever, while, among others.