mix something up

Từ điển Oxford Advanced Learner 8th

▪ I. ˌmix sthˈup derived
to change the order or arrangement of a group of things, especially by mistake or in a way that you do not want
Syn: ↑muddle
• Someone has mixed up all the application forms.
related noun ↑mix-up
Main entry: ↑mix_derived
 
▪ II. ˌmix sb/sth ˈup (with sb/sth) derived
to think wrongly that sb/sth is sb/sth else
Syn: ↑confuse
• I think you must be mixing me up with someone else.
see also ↑mixed up
Main entry: ↑mix_derived