WarsawPronunciation: /ˈwɔːsɔː/Translate Warsaw | into French | into German | into Italian | into Spanish Definition of Warsaw the capital of Poland, on the River Vistula; population 1,704,717 (2007). The city suffered severe damage and the loss of 700,000 lives during the Second World War and was almost completely rebuilt. Polish name Warszawa /varˈʃava/. Warsaw in other Oxford dictionaries Definition of Warsaw in the US English dictionary