Guardian

n. guard; protector; overseer; keeper, custodian

Guardian can refer to:Guardian, a title given to a guard or protectorLegal guardian, a person responsible for a wardGuardian (weapon), a double action only pistolGuardian (comics), a Marvel Comics superhero and a Golden Age DC Comics heroGuardian, one of the four temperaments according to the Keirsey Temperament SorterThe Guardian, the appointed leader of the Bahá'í Faith from 1921 to 1957, title given to Shoghi EffendiGuardian, a custom operating system that was key to Tandem Computers systems' failover modesAn alternative name for the Philosopher king in Plato's RepublicA short form of the name Guardian of Forever, an alien object in the Star Trek universeIn the Final Fantasy X universe, a guardian is one who protects a summoner on their quest to defeat Sin.
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Noun
1. a person who cares for persons or property
(synonym) defender, protector, shielder
(hypernym) preserver
(hyponym) chaperon, chaperone
Adjective
1. providing protective supervision; watching over or safeguarding; "daycare that is educational and not just custodial"; "a guardian angel"; "tutelary gods"
(synonym) custodial, tutelary, tutelar
(similar) protective

n. guardian, custodian; watchman; caretaker

(v. t.)
One who has, or is entitled to, the custody of the person or property of an infant, a minor without living parents, or a person incapable of managing his own affairs.
  

(v. t.)
One who guards, preserves, or secures; one to whom any person or thing is committed for protection, security, or preservation from injury; a warden.
  

(a.)
Performing, or appropriate to, the office of a protector; as, a guardian care.