turn loose

Verb

to turn loose (third-person singular simple present turns loose, present participle turning loose, simple past and past participle turned loose)

1. (idiomatic, transitive) To release or let go; to permit (someone or something) to roam freely or to act freely.
   • Don't turn the dog loose in the yard before you check whether the gate is closed.
   • He's so creative, and I'd love to turn him loose in my garden sometime and see what he dreams up.

   Synonyms:

   let loose, set free, set loose