turn in
verb
High School
1
To submit something; to give.
2
To relinquish; give up; to tell on someone to the authorities (especially to turn someone in).
3
To go to bed; to retire to bed.
4
To convert a goal using a turning motion of the body.
5
To reverse the ends of threads and insert them back into the piece being woven so they do not protrude and eventually unravel.