loose end

Universal Words noun [usuallypl.] a part of sth such as a story that has not been completely finished or explained: The play has too many loose ends. * There are still a few loose ends to tie up (= a few things to finish). IDIOMS at a loose end (BrE) (AmE at loose ends) having nothing to do and not knowing what you want to do: Come and see us, if you're at a loose end.