Noun columbus has 4 senses
- Columbus, capital of Ohio - the state capital of Ohio; located in the center of the state; site of Ohio State University
--1 is a kind of state capital
--1 is a part of Ohio, Buckeye State, OH
--1 has parts: Ohio State University
- Columbus, Christopher Columbus, Cristoforo Colombo, Cristobal Colon - Italian navigator who discovered the New World in the service of Spain while looking for a route to China (1451-1506)
--2 is a kind of navigator
- Columbus - a town in eastern Mississippi near the border with Alabama
--3 is a kind of town
--3 is a part of Mississippi, Magnolia State, MS
- Columbus - a city in western Georgia on the Chattahoochee River; industrial center
--4 is a kind of city, metropolis, urban center; port of entry, point of entry
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