1.
If you ~ two things or people, you confuse them, so that you think that one of them is the other one.
People often mix me up with other actors...
Depressed people may ~ their words...
Any time you told one of them something, they’d swear you’d mixed them up and told the other.
PHRASAL VERB: V n P with n, V P pl-n (not pron), V pl-n P
2.
If you ~ a number of things, you put things of different kinds together or place things so that they are not in order.
I like to ~ designer clothes...
Part of the plan was that the town should not fall into office, industrial and residential zones, but mix the three up together...
This is music from a different era. I’ve taken those sounds from childhood and mixed them up with other things.
PHRASAL VERB: V P pl-n (not pron), V pl-n P, V n P with n
3.
see also mixed up , mix-up