mix up

1 of 2

verb

mixed up; mixing up; mixes up
Synonyms of mix upnext

transitive verb

1
: to mistakenly think that (someone or something) is someone or something else : confuse
mixed the twins up
mixed up the times for the meetings
2
: to mistakenly put (something) in a place where something else should be
mixed up the two files
3
: to cause (someone) to be involved in a usually dangerous or improper activity
usually used as (be/get) mixed up in
got mixed up in an illegal scheme
4
: to cause (someone) to become involved with usually bad or dangerous people

mix-up

2 of 2

noun

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

Examples of mix up in a Sentence

Noun 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.
Verb
To serve a crowd, mix up a concentrate with plenty of tangy lime juice, Worcestershire, and Cholula for a jolt of heat. Nina Moskowitz, Bon Appetit Magazine, 15 June 2026 The ultimate outcome, then, was that, by the end of the seventies, Margaret Thatcher had been able to bring the various discontents mixed up in that into a kind of big-tent project within a mainstream center-right party. Isaac Chotiner, New Yorker, 12 June 2026
Noun
Despite a ballot mix-up by the State's vendor, the State Board of Elections (SBE) has maintained that all ballots and voting is safe. Bryant Reed, CBS News, 19 June 2026 Jack Scarola, an attorney for the couple, said Score and Mills appreciate how news of their mix-up helped connect them with Shea's biological parents. Landon Mion, FOXNews.com, 18 June 2026 See All Example Sentences for mix up

Word History

First Known Use

Noun

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%20up. Accessed 19 Jun. 2026.

Kids Definition

mix-up

noun
ˈmik-ˌsəp
: an instance of confusion

More from Merriam-Webster on mix up

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster