/ Dictionary / Index L Liberius: Meaning and Definition of Find definitions for: Li•be•ri•us Pronunciation: (lī-bēr'ē-us), [key] — n. died a.d. 366, pope 352–366. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Liberia libertarian Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language