/ Dictionary / Index P poplar: Meaning and Definition of Find definitions for: pop•lar Pronunciation: (pop'lur), [key] — n. any of the rapidly growing, salicaceous trees of the genus Populus, usually characterized by the columnar or spirelike manner of growth of its branches. the light, soft wood of any of these trees, used for pulp. any of various similar trees, as the tulip tree. the wood of any such tree. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: poplar (Thesaurus) pop-it Poplar Bluff Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language