turn in

To submit something; to give

“He turned in his paperwork to the main office.”

To relinquish; give up; to tell on someone to the authorities (especially to turn someone in)

“My nosy next-door neighbor turned me in for building my garage without a permit.”

To go to bed; retire to bed

“I'm tired, so I think I'll turn in early tonight.”

To convert a goal using a turning motion of the body.

To reverse the ends of threads and insert them back into the piece being woven so they do not protrude and eventually unravel.