Dictionary.net

• the capital and largest city of Burundi; "Usumbura was renamed Bujumbura when Burundi became independent in 1962"

2006 - WordNet 3.0
By Princeton University

• the capital and largest city of Burundi; "Usumbura was renamed Bujumbura when Burundi became independent in 1962"

2011 - English Dictionary Database
By DataStellar Co., Ltd