proprietor

noun

1. 1

   An owner.

2. 2

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

3. 3

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

4. 4

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

   “From 10 September 1621 till 12 June 1632, Sir William Alexander, styled Earl of Stirling and Viscount of Canada, was proprietor of the Scottish colony Nova Scotia.”