People:
* Actor: A person who performs in a play, movie, or television show.
* Author: A person who writes books or articles.
* Editor: A person who prepares written material for publication.
* Doctor: A person who is qualified to practice medicine.
* Professor: A teacher in a university or college.
* Senator: A member of a senate.
* Governor: The head of a state government.
* Mayor: The head of a city or town government.
* Traitor: A person who betrays their country or a person they trust.
Things:
* Compressor: A device that compresses air or gas.
* Generator: A device that produces electricity.
* Monitor: A device that displays information.
* Elevator: A device that transports people or goods vertically.
* Calculator: A device that performs mathematical operations.
* Separator: A device that separates substances.
* Motor: A device that converts electrical energy into mechanical energy.
Processes:
* Absorber: A device that absorbs a substance.
* Convector: A device that transfers heat by convection.
* Connector: A device that connects two things.
* Distributor: A device that distributes something.
* Insulator: A material that resists the flow of heat or electricity.
Other:
* Color: A shade or hue.
* Favor: A kind act or kindness.
* Horror: A feeling of intense fear or dread.
* Error: A mistake.
* Odor: A smell.
This list is not exhaustive, but it provides a good starting point. There are many more words ending in "-or" in the English language!