/ Dictionary / Index J John IX: Meaning and Definition of Find definitions for: John IX Pronunciation: [key] died a.d. 900, Italian ecclesiastic: pope 898–900. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. John VIII John X Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language