/ Dictionary / Index G groundswell: Meaning and Definition of Find definitions for: ground•swell Pronunciation: (ground'swel"), [key] — n. a broad, deep swell or rolling of the sea, due to a distant storm or gale. any surge of support, approval, or enthusiasm, esp. among the general public: a groundswell of political support for the governor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ground substance ground tackle Related Content Daily Word Quiz: knead Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language