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either-or

noun ei·ther-or \ ˌē-t͟hər-ˈȯr also ˌī- \
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Definition of either-or

: an unavoidable choice or exclusive division between only two alternatives

First Known Use of either-or

1922

in the meaning defined above

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either-or

adjective

Definition of either-or

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

First Known Use of either-or

1926

in the meaning defined above

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