/ Dictionary / Index Y Y.M.Cath.A.: Meaning and Definition of Find definitions for: Y.M.Cath.A. Pronunciation: [key] Young Men's Catholic Association. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. YMCA YMHA Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language