/ Thesaurus / S Synonyms of sleeping partner Find synonyms for: Noun1. silent partner, sleeping partner, partnerusage: a partner (who usually provides capital) whose association with the enterprise is not public knowledgeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language