Learn how to say Columbian correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word Columbia:
1a river in NW North America which rises in the Rocky Mountains of SE British Columbia, Canada, and flows 1,953 km (1,230 miles) generally southwards into the US, where it turns westwards to enter the Pacific south of Seattle.
2the state capital of South Carolina; population 127,029 (est. 2008).