geographical name Slo??ve??nia \sl??-??v??-n??-??, -ny??\Definition of SLOVENIA country S Europe N & W of Croatia; a federated republic of Yugoslavia 1946???91 ??? Ljubljana area 7819 square miles (20,251 square kilometers), pop 1,975,164 Rhymes with SLOVENIAArmenia, asthenia, Messenia Yes, irregardless" is a word.