/ Thesaurus / R Synonyms of roystonea Find synonyms for: Noun1. Roystonea, genus Roystonea, monocot genus, liliopsid genususage: a monocotyledonous genus of West Indian feather palmsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language