/ Dictionary / Index J John XV: Meaning and Definition of Find definitions for: John XV Pronunciation: [key] died a.d. 996, Italian ecclesiastic: pope 985–996. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. John XIV John XVII Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language