Noun

(en noun)

An owner.

* {{quote-magazine, date=2013-08-10, volume=408, issue=8848, magazine=(The Economist), author=Lexington

, title= Keeping the mighty honest , passage=The [Washington] Post's proprietor through those turbulent [Watergate] days, Katharine Graham, held a double place in Washington’s hierarchy: at once regal Georgetown hostess and scrappy newshound, ready to hold the establishment to account. That is a very American position. British journalists shun complete respectability, feeling a duty to be ready to savage the mighty, or rummage through their bins.}}

A sole owner of an unincorporated business, also called a sole proprietor.

One of the owners of an unincorporated business, a partner.

(history) One or more persons to whom a colonial territory is assigned, like a fief, including its administration.