copy in
US /ˈkɑː.pi ɪn/
UK /ˈkɑː.pi ɪn/
1.
to include someone in an email or other communication by sending them a copy
:
•
Please copy in John on this email so he's aware of the updates.
•
I'll copy you in on the next meeting invitation.
to include someone in an email or other communication by sending them a copy