/ Dictionary / Index J John II: Meaning and Definition of Find definitions for: John II Pronunciation: [key] (Mercurius) died a.d. 535, Italian ecclesiastic: pope 533–535. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. John I John III Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language