Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Verb: let loose  let loos
  1. Express audibly; make sounds (not necessarily words)
    "He let loose strange sounds that nobody could understand";
    - utter, emit, let out
  2. Turn loose or free from restraint
    "let loose mines";
    - unleash, loose

Derived forms: let loose, lets loose, letting loose

Type of: let go, let go of, release, relinquish