What exactly is the functionality of else (as in "something else")?
Does it always modify an action?
Does it also sometimes qualify a noun?
OTOH, some others are charitable enough to treat else as an adjective (at least in some instances).
At least one resource calls it a determiner as well (in BrE). (Collins) Here it is listed primarily as an adjective instead.
Is else as in "… something else …" an adverb, an adjective, a determiner, or something else?