As a native speaker I can assure you that the ukrainian word Krai (край) has two meanings - a land and a border. But border only of a physical thing - of a cup, table or watch. Never as a border of a country (or geo-social area), for this we have a different set of words (кордон, межа, границя)
Ukraine means border, but I'm not sure if you know which country border (hint: not Russia).