洪牙利[hangarii] Hungary
洪水[kouzui] flood
洪積[kouseki] diluvial epoch (geol.)
洪積世[kousekisei] diluvial epoch
洪積層[kousekisou] diluvial formation (geol.)

洪大[koudai] great
日洪親善[nikkoushinzen] goodwill between Japan and Hungary
大洪水[daikouzui] heavy floods
洪基[kouki] foundation of a great project
洪業[kougyou] glorious achievement