/ Dictionary / Index A Avernus: Meaning and Definition of Find definitions for: A•ver•nus Pronunciation: (u-vûr'nus), [key] — n. a lake near Naples, Italy, looked upon in ancient times as an entrance to hell, from whose waters vile-smelling vapors arose, supposedly killing birds flying over it. hell. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. averment Averroës Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language