loose end

noun
UK /ˌluːs ˈend/
US /ˌluːs ˈend/

A small part of something that is not finished or tied up yet.

Before we leave, let's tie up the loose ends of the project.


OTHER MEANINGS

2. A piece of string or rope that is not tied or fastened.

A loose end of the rope dangled from the boat.

3. A person who is alone and has no clear purpose or connection.

The stranger was a loose end in the quiet town.

4. A small remaining part of something that still needs attention.

We still have a few loose ends to sort out before the trip.