/ Dictionary / Index N narthex: Meaning and Definition of Find definitions for: nar•thex Pronunciation: (när'theks), [key] — n. Archit. an enclosed passage between the main entrance and the nave of a church. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: narthex (Thesaurus) Narrows Narva Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language