either-or
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1ei·ther–or

noun \ˌē-thər-ˈr also ˌī-\

Definition of EITHER-OR

: an unavoidable choice or exclusive division between only two alternatives

First Known Use of EITHER-OR

1922

2either–or

adjective

Definition of EITHER-OR

: of or marked by either-or : black-and-white

First Known Use of EITHER-OR

1926

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