Definition of: keeper

(kē′pər) noun
1. One who or that which keeps; specifically, the overseer of a prison; the guardian of an insane person; the caretaker of a wild animal; any guardian.
2. A device for keeping something in place, as the socket into which a bolt slides.
3. One who observes or obeys: a keeper of promises.
4. That which keeps well, without spoiling, as fruit.
5. The armature of a magnet; also, the soft iron bar placed across the poles of a horseshoe magnet to prevent loss of magnetism.