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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.
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 The mix-up sparked confusion, leading Beatty to announce La La Land as the Best Picture winner. Virginia Chamlee, PEOPLE, 10 Nov. 2025 But beneath the mix-ups, something deeper’s being rewritten. Dossé-Via Trenou, Refinery29, 9 Nov. 2025 Turns out that there was a mix-up, and another man named Bill DeBlasio, from Long Island, is taking credit for those quotes (the former mayor is, in fact, a supporter of Mamdani’s.). New York Times, 1 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 27 Nov. 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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