/ Dictionary / Index G groundout: Meaning and Definition of Find definitions for: ground•out Pronunciation: (ground'out"), [key] — n. Baseball. a play in which a batter is put out at first base after hitting a ground ball to the infield. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ground observer ground owl Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language