What does "keeper" mean?

Additional senses

1. 2.One who has the care, custody, or superintendence of anything; as, the keeper of a park, a pound, of sheep, of a gate, etc. ; the keeper of attached property; hence, one who saves from harm; a defender; a preserver. The Lord is thy keeper. Ps. cxxi.
2. 3.4. One who remains or keeps in a place or position. Discreet; chaste; keepers at home. Titus ii.
3. 4.5. A ring, strap, clamp, or any device for holding an object in place; as: (a) The box on a door jamb into which the bolt of a lock protrudes, when shot. (b) A ring serving to keep another ring on the finger. (c) A loop near the buckle of a strap to receive the end of the strap.
4. 5.A fruit that keeps well; as, the Roxbury Russet is a good keeper. Downing. Keeper of the forest (O. Eng. Law), an officer who had the principal government of all things relating to the forest. -- Keeper of the great seal, a high officer of state, who has custody of the great seal. The office is now united with that of lord chancellor. [Eng.] -- Keeper of the King's conscience, the lord chancellor; -- a name given when the chancellor was an ecclesiastic. [Eng.] -- Keeper of the privy seal (styled also lord privy seal), a high officer of state, through whose hands pass all charters, pardons, etc., before they come to the great seal. He is a privy councillor, and was formerly called clerk of the privy seal. [Eng.] - - Keeper of a magnet, a piece of iron which connects the two poles, for the purpose of keeping the magnetic power undiminished; an armature.