D defs.my
Entry 7 senses Webster, 1913

Keeper

/kēp'-ẽr/ · Keep·er · IPA /ˈkiːpɚ/
01 n. One who, or that which, keeps; one who, or that which, holds or has possession of anything.
  1. 1.
    One who, or that which, keeps; one who, or that which, holds or has possession of anything.
  2. 2.
    One who retains in custody; one who has the care of a prison and the charge of prisoners.
  3. 3.
    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;
    “The Lord is thy keeper.” — Ps. cxxi. 6.
  4. 4.
    One who remains or keeps in a place or position.
    “Discreet; chaste; keepers at home.” — Titus ii. 5.
  5. 5.
    A ring, strap, clamp, or any device for holding an object in place;
  6. 6.
    A fruit that keeps well; as, the Roxbury Russet is a good keeper.
  7. 7.
    An iron bar that is placed on the poles of a horseshoe magnet, and held in place there by the magnetic force, to preserve the strength of the magnet when not in use.
Phrases & compounds
Keeper of the forest — 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.
Keeper of the King's conscience — the lord chancellor; -- a name given when the chancellor was an ecclesiastic.
Keeper of the 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.
Keeper of a magnet — a piece of iron which connects the two poles, for the purpose of keeping the magnetic power undiminished; an armature; called also keeper.