put on
Separable
Dress yourself in something, or start a device
Put your coat on. It is cold.
Gain weight
She put on two kilos over the winter.
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: on
This verb belongs to the group ‘starting and wearing’.
Practise it
Add it to your daily practice or see every verb with on.
Further reading: put on on Wiktionary (CC BY-SA).