make up
With or without an object
Invent a story or an excuse
He made up an excuse for being late.
Become friends again after an argument (no object)
They argued on Monday but had made up by Wednesday.
With or without an object
It can be used with no object, and it can also take one. With an object it is usually separable: turn the volume up, turn it up.
The particle: up
This verb belongs to the group ‘making, arranging and starting’.
Practise it
Add it to your daily practice or see every verb with up.
Further reading: make up on Wiktionary (CC BY-SA).