Breadcrumb Home > Dictionary > Index N Neckar: Meaning and Definition of Find definitions for: Neck•ar Pronunciation: (nek'ur Ger. ne'kär), [key] — n. a river in SW Germany, flowing N and NE from the Black Forest, then W to the Rhine River. 246 mi. (395 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: neckar (Thesaurus) neck neckband ✖ Related Content Daily Word Quiz: derogate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language