Entry 1 sense Webster, 1913 Columbia /kəl-ŭm'-bē-ə/ · Co·lum·bi·a · IPA /kəˈlʌm.bi.ə/ 01 n. America; the United States; -- a poetical appellation given in honor of Columbus, the discoverer. 1. America; the United States; -- a poetical appellation given in honor of Columbus, the discoverer.