/ Dictionary / Index D date line: Meaning and Definition of Find definitions for: date' line". Pronunciation: [key] See date•line Pronunciation: (dāt'līn"), [key] — n., v., -lined, -lin•ing. —n. a line giving the place of origin and usually the date of a news dispatch or the like. —v.t. to furnish (a news story) with a dateline: He datelines his reports Damascus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dateline (Thesaurus) dateless date mussel Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language