expand on

US /ɪkˈspænd ɑːn/
UK /ɪkˈspænd ɑːn/
"expand on" picture
1.

to add more details or information to something that has already been said or written

:
•
Could you please expand on your last point?
•
The speaker promised to expand on the topic in the next session.
:
elaborate onflesh outadd todevelopamplify
:
expand