protector
noun
[ prəˈtɛktə ]
• a person or thing that protects someone or something.
• "a man who became her protector, adviser, and friend"
Similar:
defender,
preserver,
bodyguard,
guardian,
guard,
champion,
watchdog,
ombudsman,
knight in shining armour,
guardian angel,
patron,
chaperone,
escort,
keeper,
custodian,
minder,
hired gun,
shield,
pad,
buffer,
cushion,
screen,
protection,
• a regent in charge of a kingdom during the minority, absence, or incapacity of the sovereign.
• "the King's uncle became Protector"
