either-or


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ei·ther-or

(ē′thər-ôr′, ī′thər-)
n.
A strictly limited choice or division between only two options.
adj.
Of or characterized by a choice or division limited strictly between two options: found ourselves in an either-or situation.

either-or

adj
presenting an unavoidable need to choose between two alternatives: an either-or situation.

ei′ther-or′



adj.
1. restricted in choice to two options: an either-or situation.
n.
2. a choice having only two options.
[1925–30]