Princeton's WordNet

1. keeper(noun)

   someone in charge of other people

   "am I my brother's keeper?"

2. custodian, keeper, steward(noun)

   one having charge of buildings or grounds or animals

Kernerman English Learner's Dictionary

1. keeper(noun)ˈki pər

   sb whose job is to take care of sth

   a zoo keeper

Wiktionary

1. keeper(Noun)

   One who keeps.

   Finders keepers; losers weepers.

2. keeper(Noun)

   A person or thing worth keeping.

   You can throw out all the blurry photos, but the one with her and her daughter is certainly a keeper.

3. keeper(Noun)

   A person charged with guarding or caring for, storing, or maintaining something; a custodian, a guard.

4. keeper(Noun)

   The player charged with guarding a goal or wicket. Short form of goalkeeper, wicketkeeper.

5. keeper(Noun)

   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.

6. keeper(Noun)

   An offensive play in which the quarterback runs toward the goal with the ball after it is snapped.

Webster Dictionary

1. Keeper(noun)

   one who, or that which, keeps; one who, or that which, holds or has possession of anything

2. Keeper(noun)

   one who retains in custody; one who has the care of a prison and the charge of prisoners

3. Keeper(noun)

   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

4. Keeper(noun)

   one who remains or keeps in a place or position

5. Keeper(noun)

   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

6. Keeper(noun)

   a fruit that keeps well; as, the Roxbury Russet is a good keeper

The Standard Electrical Dictionary

1. Keeper

   A bar of soft iron used to connect the opposite poles of a horseshoe magnet or the opposite poles of two bar magnets placed side by side. It is designed to prevent loss of magnetism. The armature of a horseshoe magnet is generally used as its keeper. For bar magnets a keeper is used for each end, the magnets being laid side by side, with their poles in opposite direction but not touching, and a keeper laid across at each end connecting the opposite poles.

• bewaarder, bewakerAfrikaans
• حارِس، مُحافِظArabic
• пазачBulgarian
• guardaPortuguese (BR)
• dozorce, ošetřovatelCzech
• der WärterGerman
• dyrepasser; -passerDanish
• φύλακαςGreek
• guarda, guardiánSpanish
• valvurEstonian
• نگهبان؛ متصدیFarsi
• hoitajaFinnish
• gardien/-ienneFrench
• שׁוֹמֵרHebrew
• पालक, रखवालाHindi
• čuvarCroatian
• őr(ző)Hungarian
• pemeliharaIndonesian
• vörður, gæslumaðurIcelandic
• custode, guardianoItalian
• 飼育係Japanese
• 사육자Korean
• prižiūrėtojasLithuanian
• uzraugs; sargs; glabātājsLatvian
• penjagaMalay
• bewaarderDutch
• dyrepasser; fangevokterNorwegian
• dozorcaPolish
• نگهبان؛ متصدیPersian
• ساتونكى،چپراسىPashto
• guardaPortuguese
• paznicRomanian
• смотрительRussian
• dozorca, -kyňaSlovak
• čuvajSlovenian
• čuvarSerbian
• skötare, vårdare, vakt[are]Swedish
• คนเลี้ยงThai
• bakıcıTurkish
• 看守員，管理員(如動物園管理員)Chinese (Trad.)
• доглядач; сторожUkrainian
• رکھوالاUrdu
• người chăm sócVietnamese
• 看守人，管理人（如动物园的饲养员）Chinese (Simp.)