Breadcrumb Home > Thesaurus > P Synonyms of proprietor Find synonyms for: Noun1. owner, proprietor, businessman, man of affairsusage: (law) someone who owns (is legal possessor of) a business; "he is the owner of a chain of restaurants"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of proprietor (Dictionary) ✖ Related Content Daily Word Quiz: hieratic Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language