South American nation, independent from 1819 as part of Gran Colombia (after its breakup in 1830, known as New Granada, then Colombia from 1863); named for Italian explorer Christopher Columbus (Italian Colombo, Portuguese Colom, Spanish Colón). Related: Colombian.

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Definitions of Colombia from WordNet

Colombia (n.)
a republic in northwestern South America with a coastline on the Pacific Ocean and the Caribbean Sea; achieved independence from Spain in 1821 under the leadership of Simon Bolivar; Spanish is the official language;
Synonyms: Republic of Colombia