A relative or third party appointed by a will or by the law to assume responsibility for minor children or incompetent adults.
Merriam-Webster Online Dictionary
guardian (noun)1.
one that - guards custodian
2.
a superior of a Franciscan monastery
3.
one who has the care of the person or property of another
Merriam-Webster Online Thesaurus
guardian (noun)1.
a person or group that watches over someone or something
SYNONYMS:
custodian, guardian, keeper, lookout, minder, picket, sentinel, sentry, warden, warder, watch, watcher, watchmanRELATED WORDS:
observer, patrol, spotter, surveillant, watchdog; bodyguard, convoy, defender, escort, honor guard; gatekeeper; hack []2.
a person who takes care of a property sometimes for an absent owner
SYNONYMS:
caretaker, guardian, janitor, keeper, warden, watchmanRELATED WORDS:
cocurator, curator; sexton, steward3.
someone that protects
SYNONYMS:
custodian, defender, guard, guardian, guardian angel, protectionRELATED WORDS:
bodyguard, champion; lookout, sentinel, sentry, warden, warder, watch, watchdog, watchman; conserver, harborer, keeper, preserver, saver4.
a person who has responsibility for the care of another
SYNONYMS:
carer, caretaker, guardianRELATED WORDS:
foster parent; babysitter, minder, nanny ( nannie), nurse, sitter; custodian, guard, keep, keeper, protector; attendant, chaperone ( chaperon), companionNEAR ANTONYMS:
charge, client, dependent, ward