send out
Separable
Send many copies of something to different people
We sent out the invitations in May.
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 ‘giving to many people’.
Practise it
Add it to your daily practice or see every verb with out.
Further reading: send out on Wiktionary (CC BY-SA).