1
: someone or something that watches or protects something — often + of
The historical society sees itself as the guardian of the town’s traditions.
a usage criticized by people who consider themselves guardians of proper English
2
law : someone who takes care of another person or of another person’s property
After the death of her parents, her uncle was appointed as her legal guardian.
their guardianship of the town’s traditions
他们对城市传统的守护
The court granted guardianship to her uncle.
法院批准她叔叔为她的监护人。