/ Dictionary / Index Y Yiddishkeit*: Meaning and Definition of Find definitions for: Yid•dish•keit Pronunciation: (yid'ish-kīt"), [key] — n. Yiddish. Jewish tradition, culture, character, or heritage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Yiddishism yield Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language