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