/ Dictionary / Index C Cosgrave: Meaning and Definition of Find definitions for: Cos•grave Pronunciation: (koz'grāv"), [key] 1880–1965, Irish political leader: president of the executive council of the Irish Free State 1922–32. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coset cosh Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language