Definitions
1.nounSomeone who protects or guards, by assignment or on their own initiative.
2.nounA device or mechanism which is designed to protect.
3.nounOne who prevents interference.
4.nounA state or other subject under international law, exercising a protectorate over another subject in international law.
5.nounOne having the care of the kingdom during the king's minority; a regent.
6.nounA cardinal, from one of the more considerable Roman Catholic nations, who looks after the interests of his people at Rome; also, a cardinal who has the same relation to a college, religious order, etc.