Directly related to the concept of "office":
* Officiate: To perform the duties of an office or function.
* Official: Relating to an office, authorized or recognized.
* Officious: Meddlesome or interfering, often in an unwanted way.
* Officeholder: A person who holds a position of authority or responsibility in an office.
Words with "office" as part of a compound word:
* Office building: A building that houses offices.
* Office furniture: Furniture designed for use in offices, such as desks, chairs, and filing cabinets.
* Office supplies: Materials used in an office, such as paper, pens, and staplers.
* Office worker: A person who works in an office.
* Post office: A government-run facility for handling mail.
* Police office: A police station.
* Doctor's office: A place where a doctor practices medicine.
More abstract or metaphorical uses:
* Office of the President: The position of the head of state in a republic.
* Office of the CEO: The position of the head of a company.
* Office of the Secretary-General: The position of the head of the United Nations.
* Holding office: Serving in a position of authority or responsibility.
These are just some examples, and there are many other words that use the root "office" in different ways.