/ Dictionary / Index C Casey: Meaning and Definition of Find definitions for: Ca•sey Pronunciation: (kā'sē), [key] — n. a male given name: from an Irish word meaning “brave.” Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. caseworm cash Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language