Alternatively.
In reciprocal succession; succeeding by turns; in alternate order.
By alternation; when, in a proportion, the antecedent term is compared with antecedent, and consequent.
As well.
Introduces the first of two (or occasionally more) options or possibilities, the second (or last) of which is introduced by “or”.
Any one (of two).
Each of two; both.
One or the other of two people or things.