and/or

conjunction

ˈand-ˈȯr

—used as a function word to indicate that two words or expressions are to be taken together or individually

… language comprehension and/or production …—

David Crystal

Word History

First Known Use

1853, in the meaning defined above

Time Traveler

The first known use of and/or was in 1853

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Browse Nearby Words

Andoke

and/or

andorite

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Cite this Entry

Style

“And/or.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/and%2For. Accessed 9 Nov. 2025.

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Last Updated: 4 Nov 2025 - Definition revised

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