/ Thesaurus / A Synonyms of american sycamore Find synonyms for: Noun1. American sycamore, American plane, buttonwood, Platanus occidentalis, plane tree, sycamore, platanusage: very large spreading plane tree of eastern and central North America to MexicoWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language