/ Dictionary / Index O Oder: Meaning and Definition of Find definitions for: O•der Pronunciation: (ō'dur), [key] — n. a river in central Europe, flowing from the NE Czech Republic, N through SW Poland and along the border between Germany and Poland into the Baltic. 562 mi. (905 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oder (Thesaurus) Ode on a Grecian Urn* Oder-Neisse Line Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language