Definitions of office:

• noun:   a religious rite or service prescribed by ecclesiastical authorities

  Example: "The offices of the mass"

• noun:   place of business where professional or clerical duties are performed

  Example: "He rented an office in the new building"

• noun:   professional or clerical workers in an office

  Example: "The whole office was late the morning of the blizzard"

• noun:   (of a government or government official) holding an office means being in power

  Example: "Being in office already gives a candidate a great advantage"

• noun:   the actions and activities assigned to or required or expected of a person or group
• noun:   a job in an organization
• noun:   an administrative unit of government

  Example: "Office of Management and Budget"