Noun district of columbia has 1 sense
  1. District of Columbia, D.C., DC - the district occupied entirely by the city of Washington; chosen by George Washington as the site of the nation's capital and carve out of land ceded by Maryland and Virginia
    --1 is a kind of federal district
    --1 is a part of
     United States, United States of America, America, US, U.S., USA, U.S.A.
    --1 has parts:
     Washington, Washington D.C., American capital, capital of the United States
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