Collier (noun)

A person who works in a coal mine. A ship used to transport coal.

Origin:

From the word "coal" it refers to a person who works in a coal mine or a ship used to transport coal.

Examples:

1. The collier worked in the coal mines for over 20 years.
2. The collier was a hardworking and dedicated worker.
3. The collier's ship was loaded with coal and ready to set sail.
4. The collier's job was to extract coal from the mine.
5. The collier's ship transported coal to power plants and factories.