the district of columbiaOur editors are putting together more complete content — check back in about 20 minutesthe district of columbiathe district of columbia — noun名詞1. the capital district of the United States, coterminous with Washington, D.C.1.名詞釋義the capital district of the United States, coterminous with Washington, D.C.例句The District of Columbia is not a state.