Outsider /(?)/

Out·sid·er

Outsider

n.
  1. One not belonging to the concern, institution, party, etc., spoken of; one disconnected in interest or feeling. [Recent]
  2. A locksmith's pinchers for grasping the point of a key in the keyhole, to open a door from the outside when the key is inside.
  3. A horse which is not a favorite in the betting. [Cant]