/ Dictionary / Index J jubilus: Meaning and Definition of Find definitions for: ju•bi•lus Pronunciation: ( j'bu-lus), [key] — pl. -li (in Roman Catholic music) a rejoicing, melodic group of tones to which is chanted the last “a” of the second and third alleluias, often following the gradual of the Mass. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jubilee year Jud. Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language