°one or the other (of two).
"I don't mind whether your mother or father attends - you can bring either parent."
°each of two.
"The room has a door at either end."
noun
°(obsolete)
Both, each of two (people or things).
°One or other of two people or things.
verb
°(conjunctive after a negative) as well.
conjunction
°Introduces the first of two options, the second of which is introduced by "
or".
synonyms:
both, each, neither, too