From Longman Dictionary of Contemporary EnglishBosnia and HerzegovinaˌBosnia and ˌHerzegoˈvina (also Bosnia-Herzegovina)a country in easternEurope between Serbia and Montenegro to the east and Croatia to the North and Southeast. It was formerly a part of Yugoslavia. Its official title is the Republic of Bosnia and Herzegovina. Population: 3,875,723 (2014). Capital: Sarajevo.