/ Dictionary / Index J Julius I: Meaning and Definition of Find definitions for: Julius I Pronunciation: [key] — Saint, died a.d. 352, Italian ecclesiastic: pope 337–352. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Julius Julius II Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language