/ Dictionary / Index D Decatur: Meaning and Definition of Find definitions for: De•ca•tur Pronunciation: (di-kā'tur), [key] — n. 1779–1820, U.S. naval officer. a city in central Illinois. 94,081. a city in N Alabama. 42,002. a city in N Georgia, near Atlanta. 18,404. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decatur (Thesaurus) decating decatyl alcohol Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language