and/or

[ and-awr ]

/ ˈændˈɔr /

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conjunction

(used to imply that either or both of the things mentioned may be affected or involved): insurance covering fire and/or wind damage.

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usage note for and/or

The combination and/or is used primarily in business and legal writing: All dwellings and/or other structures on the property are included in the contract. Because of these business and legal associations, some object to the use of this combination in general writing, where it occasionally occurs: She spends much of her leisure time entertaining and/or traveling. In such writing, either and or or is usually adequate. If a greater distinction is needed, another phrasing is available: Would you like cream or sugar, or both?

Words nearby and/or

Andie, Andijon, andiron, Andizhan, Andong, and/or, andoroba, Andorra, Andorra la Vella, Andorran, andouille

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use and/or in a sentence

As an example of good science-and-society policymaking, the history of fluoride may be more of a cautionary tale.
Anti-Fluoriders Are The OG Anti-Vaxxers|Michael Schulson|July 27, 2016|DAILY BEAST
As this list shows, punishments typically run to a short-ish jail sentence and/or a moderately hefty fine.
In Defense of Blasphemy|Michael Tomasky|January 9, 2015|DAILY BEAST
Yes, Byrd—dead four-and-a-half years now—was a Kleagle in the Ku Klux Klan.
Steve Scalise and the Right’s Ridiculous Racial Blame Game|Michael Tomasky|January 2, 2015|DAILY BEAST
Later that night, that same black-and-red banner would be seen again—in the column of marchers chanting for dead cops.
The Monsters Who Screamed for Dead Cops|Jacob Siegel|December 23, 2014|DAILY BEAST

The kids are out of school, Mom is out of get-up-and-go, Dad is out of work.
Congress’ Gift That Keeps on Giving|P. J. O’Rourke|December 20, 2014|DAILY BEAST
She also practises etching, pen-and-ink drawing, as well as crayon and water-color sketching.
Women in the fine arts, from the Seventh Century B.C. to the Twentieth Century A.D.|Clara Erskine Clement
No law of that country must exceed in words the number of letters in their alphabet, which consists only in two-and-twenty.
Gulliver's Travels|Jonathan Swift
Mr. Spurrell came down to see a horse, and we shall be very glad to have the benefit of his opinion by-and-by.
Punch, or the London Charivari, Volume 107, November 3, 1894|Various
They were eaten too quickly, in long gulps of four-and-twenty hours at a time.
Kipling Stories and Poems Every Child Should Know, Book II|Rudyard Kipling
He walked over to the table and mixed two tumblers of whiskey-and-soda, wondering why he had not thought of it before.
Ancestors|Gertrude Atherton

British Dictionary definitions for and/or

and/or

conjunction

(coordinating) used to join terms when either one or the other or both is indicatedpassports and/or other means of identification

usage for and/or

Many people think that and/or is only acceptable in legal and commercial contexts. In other contexts, it is better to use or both: some alcoholics lose their jobs or their driving licences or both (not their jobs and/or their driving licences)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with and/or

and/or

Both or either of two options. For example, His use of copyrighted material shows that the writer is careless and/or dishonest. This idiom originated in legal terminology of the mid-1800s.