What it means

1. noun a religious rite or service prescribed by ecclesiastical authorities
   “the offices of the mass”
2. noun place of business where professional or clerical duties are performed
   “he rented an office in the new building”
3. noun professional or clerical workers in an office
   “the whole office was late the morning of the blizzard”
4. noun (of a government or government official) holding an office means being in power
   “being in office already gives a candidate a great advantage”
5. noun the actions and activities assigned to or required or expected of a person or group
   “the function of a teacher”
6. noun a job in an organization
   “he occupied a post in the treasury”
7. noun an administrative unit of government
   “the Central Intelligence Agency”