a federal area in the E United States, on the Potomac, coextensive with the federal capital, Washington. 637,651; 69 sq. mi. (179 sq. km). Abbr.: DC (for use with zip code), D.C.
DISTRICT OF COLUMBIA
Meaning of DISTRICT OF COLUMBIA in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012