A situation where things are confused or mistaken for one another.

भ्रमित स्थिति

English Usage: There was a mix-up with the reservations at the restaurant.

Hindi Usage: रेस्तरां में आरक्षण के साथ भ्रमित स्थिति थी।

To confuse or mistake one thing for another.

गलती करना

English Usage: I always mix up their names.

Hindi Usage: मैं हमेशा उनके नाम गलत कर देता हूँ।