trustee
noun
[ trʌsˈtiː ]
• an individual person or member of a board given control or powers of administration of property in trust with a legal obligation to administer it solely for the purposes specified.
• "pension fund trustees"
Similar:
administrator,
agent,
custodian,
keeper,
steward,
depositary,
executor,
executrix,
fiduciary,
feoffee,
• a state made responsible for the government of an area by the United Nations.