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1
: a state or instance of confusion
a mix-up in our hotel reservations
2
3

Examples of mix-up in a Sentence

there was a mix-up at the airport and our luggage was accidentally sent to Ohio
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This novel is much more than a story of a possible hospital mix-up of babies. Mary Ann Grossmann, Twin Cities, 30 Nov. 2025 What should have been a forgettable mix-up instead bloomed into an annual Thanksgiving reunion — and a friendship that has carried both Wanda Dench and Jamal Hinton through loss, new beginnings and some of life’s most unexpected blessings. Moná Thomas, PEOPLE, 26 Nov. 2025 Rookie outside linebacker Jack Sawyer was flagged for offside, a penalty Chicago happily declined because the free play ended with Caleb Williams finding a wide-open D.J. Moore for a touchdown without a defender anywhere near him, thanks to a mix-up in coverage. CBS News, 25 Nov. 2025 According to Jensen, the mix-up began after Bailey had spent time happily fetching his own ball in the sea. Alice Gibbs, MSNBC Newsweek, 13 Nov. 2025 See All Example Sentences for mix-up

Word History

First Known Use

1841, in the meaning defined at sense 1

Time Traveler
The first known use of mix-up was in 1841

Browse Nearby Words

Cite this Entry

“Mix-up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mix-up. Accessed 3 Dec. 2025.

Kids Definition

mix-up

noun
ˈmik-ˌsəp
: an instance of confusion

More from Merriam-Webster on mix-up

Last Updated: - Updated example sentences
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