[ miks-uhp ]
/ ˈmɪksˌʌp /


a confused state of things; muddle; tangle.
a fight.

Origin of mix-up

First recorded in 1835–45; noun use of verb phrase mix up

Definition for mix up (2 of 2)

Origin of mix

1470–80; back formation from mixt mixed


1, 9 commingle, jumble, unite, amalgamate, fuse. Mix, blend, combine, mingle concern the bringing of two or more things into more or less intimate association. Mix is the general word for such association: to mix fruit juices. Blend implies such a harmonious joining of two or more types of colors, feelings, etc., that the new product formed displays some of the qualities of each: to blend fragrances or whiskeys. Combine implies such a close or intimate union that distinction between the parts is lost: to combine forces. Mingle usually suggests retained identity of the parts: to mingle voices.
9 coalesce.
14 concoction; formula.

Related forms

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for mix up (1 of 2)


/ (mɪks) /



See also mix-up

Derived Forms

mixable, adjectivemixability, noun

Word Origin for mix

C15: back formation from mixt mixed, via Old French from Latin mixtus, from miscēre to mix

British Dictionary definitions for mix up (2 of 2)



a confused condition or situation
informal a fight

verb mix up (tr, adverb)

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

Idioms and Phrases with mix up

mix up


Confuse, confound, as in His explanation just mixed me up even more, or I always mix up the twins. [c. 1800]


Involve or implicate. This usage is usually put in the passive, as in He got mixed up with the wrong crowd. [Mid-1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.