Synonyms for guardian
noun
One who regulates or protects
overseer, safeguard, curator, guard, vigilante, protector, conservator, preserver, trustee, custodian, keeper, patrol, warden, defender, paladin, member of a vigilance committee, supervisor, babysitter, sponsor, superintendent, sentinel, member of the Watch and Ward*.
A foster parent
adoptive parent, foster mother, foster father, nurse, protector, custodian.
See guardian in Webster's New World Roget's A-Z Thesaurus II
noun
A person who is legally responsible for the person or property of another considered by law to be incompetent to manage his or her affairs:
caretaker, custodian, keeper. (Law) conservator. See law
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