/ Thesaurus / N Synonyms of necklace poplar Find synonyms for: Noun1. Eastern cottonwood, necklace poplar, Populus deltoides, cottonwoodusage: a common poplar of eastern and central United States; cultivated in United States for its rapid growth and luxuriant foliage and in Europe for timberWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language