to give somebody information about something that they have asked you to find out about
گزارش دادن, ارائه گزارشی کردن, بررسی و گزارش دادن
Find out as much as you can about him and report back to me.
One person in the group should be prepared to report back to the class on your discussion.
They reported back that no laws had actually been broken.
The reconnaissance party reported back that the town was heavily fortified.