noun

• One who keeps (retains) something.
• One who remains or keeps in a place or position.
• A fruit or vegetable that keeps (remains good) for some time without spoiling.
• (informal) A person or thing worth keeping.
• A person charged with guarding or caring for, storing, or maintaining something; a custodian, a guard; sometimes a gamekeeper.
• (sports) The player charged with guarding a goal or wicket. Short form of goalkeeper, wicketkeeper.
• A part of a mechanism that catches or retains another part, for example the part of a door lock that fits in the frame and receives the bolt.
• A thin, flexible tress or tongue of material (e.g. leather) at the end of a crop opposite the handle, which is broad enough to prevent the horse's skin from being marked as it might be by a whip.
• (American football) An offensive play in which the quarterback runs toward the goal with the ball after it is snapped.
• Synonym of armature (“piece of metal connecting the poles of a magnet to preserve its strength by forming a circuit”)
• An English surname originating as an occupation for the keeper of a castle.