What is Loose ?
Loose is (adj) 1. not attached Watch out! – the sail is loose and swinging towards you! The front wheel is loose and needs tightening. The boat came loose and started to drift away. Once he was let loose, the dog ran across the park. 2. to be at a loose end to have nothing special to do We’re at a loose end this weekend. 3. (of a garment) wide, not tight-fitting (NOTE: looser – loosest) (verb) to start something happening The government’s proposals loosed off demonstrations in all parts of the country.
source: Easier English, Student Dictionary Upper Intermediate Level