CROAT Meaning of CROAT in English Cro ‧ at /ˈkrəʊæt/ BrE AmE noun 1 . [countable] someone who comes from Croatia 2 . [uncountable] the language of Croatia, a form of Serbo-Croat Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012