1. to tidy up
Have you tidied up your room?DE-um das Haus
2. clean up
Clean up your room before you leave
Clean up your room before you leave.
I have to clean the flat up before the guests come.
Oh, we'll clean up this afternoon.
leave a mess
3. to clean
Students promised to clear up after the party.
The dentist cleaned my teeth and said I needed to have it done every 6 months
You should clean the kitchen immediately.
You should clean the kitchen.