writer

A person who writes, or produces literary work.

Anything that writes or produces output.

(finance) The seller of an option.

(historical) A clerk of a certain rank in the service of the East India Company, who, after serving a certain number of years, became a factor.

(Scotland) An ordinary legal practitioner in Scottish country towns.

(US) A petty officer in the United States navy who keeps the watch-muster and other books of the ship.