/ Dictionary / Index P promo: Meaning and Definition of Find definitions for: pro•mo Pronunciation: (prō'mō), [key] — n., pl. adj., v., -mos, -moed, -mo•ing. —n. promotion (def. 5). —adj. of, pertaining to, or involving the promotion of a product, event, etc.; promotional. —v.t. to promote (def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. promissory note promontory Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language