/ Thesaurus / G Synonyms of grand piano Find synonyms for: Noun1. grand piano, grand, piano, pianoforte, forte-pianousage: a piano with the strings on a horizontal harp-shaped frame; usually supported by three legsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dispel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language