/
luːs/
adj.
     - not firmly or tightly fixed in place. 
▸not held, tied, or packaged together.
 ▸not bound or tethered.
 ▸(of the ball in a game) in play but not in any player's possession.
 - not fitting tightly or closely.
 - not dense or compact. 
▸(of play, especially in rugby) with the players far apart.
 - relaxed; physically slack. 
▸not strict or exact.
 ▸careless and indiscreet:
 loose talk.
 - dated promiscuous:
 a loose woman.
 
n.
 
(
the loose)
 
Rugby  loose play.
v.
  - set free. 
▸untie; unfasten.
 ▸relax (one's grip).
 - 
(usu. loose something off)
 discharge; fire.
 
Phrase
- hang loose
 informal, chiefly N. Amer. remain calm and untroubled.  - on the loose
 having escaped from confinement. 
Derivative
- loosely adv.
  - looseness n.
 
Usage
The words loose and lose should not be confused: see usage at lose.
Etymology
ME loos ‘free from bonds’, from ON lauss, of Gmc origin.