cross out
Separable
Draw a line through writing to show it is wrong
Cross out the wrong answer and write the right one.
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: out
This verb belongs to the group ‘leaving or removing’.
Practise it
Add it to your daily practice or see every verb with out.
Further reading: cross out on Wiktionary (CC BY-SA).