/ Thesaurus / I Synonyms of isaac merrit singer Find synonyms for: Noun1. Singer, Isaac M. Singer, Isaac Merrit Singerusage: United States inventor of an improved chain-stitch sewing machine (1811-1875)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language