Breadcrumb Home > Thesaurus > P Synonyms of promisor Find synonyms for: Noun1. promiser, promisor, communicatorusage: a person who makes a promiseWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of promisor (Dictionary) ✖ Related Content Daily Word Quiz: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language