十じゅう字じ座ざMeanings1nounCrux; Southern Crossrare termastronomyRare astronomical term for the constellation Crux. In everyday Japanese, the Southern Cross is more commonly referred to as 南十字星 (みなみじゅうじせい).十じゅう字じ座ざは南みなみ半はん球きゅうでよく見みえる星せい座ざです。Crux is a constellation often visible in the Southern Hemisphere.