/ Dictionary / Index N nether world: Meaning and Definition of Find definitions for: neth'er world" Pronunciation: [key] the infernal regions; hell. the afterworld, or the hereafter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: netherworld (Thesaurus) nethermost Néthou Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language