minister

a person authorized to conduct religious worship; "clergymen are usually called ministers in Protestant churches"

a person appointed to a high office in the government; "Minister of Finance"

a diplomat representing one government to another; ranks below ambassador

the job of a head of a government department

attend to the wants and needs of others; "I have to minister to my mother all the time"

work as a minister; "She is ministering in an old parish"