1. (noun) religious ministers collectively (especially Presbyterian)

• priesthood

2. (noun) building where the business of a government department is transacted

• building
• edifice

3. (noun) a government department under the direction of a minister

• government department

4. (noun) the work of a minister of religion

• employment
• work

1. (noun) a government department under the direction of a minister

• foreign office
• home office