set up
Separable
Establish something, or prepare equipment for use
They set up a small business in 2015.
Prepare equipment so that it is ready to use
I will set the projector up before the meeting.
Separable
The object can go between the verb and the particle: turn the light off, or turn off the light. When the object is a pronoun it must go in the middle: turn it off, never turn off it.
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: set up on Wiktionary (CC BY-SA).