Definition of "Minister" :

noun: the job of a head of a government department

noun: a person authorized to conduct religious worship

"Clergymen are usually called ministers in Protestant churches."

noun: a diplomat representing one government to another; ranks below ambassador

noun: a person appointed to a high office in the government

"Minister of Finance."

verb: work as a minister

"She is ministering in an old parish."

verb: attend to the wants and needs of others

"I have to minister to my mother all the time."