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

ゴミ集積場[gomishuusekijou] village garbage collection point
欝積[usseki] accumulation (e.g. of emotions, grievances, etc.)
沖積[chuuseki] alluvial
沖積期[chuusekiki] alluvial period
沖積世[chuusekisei] alluvial epoch (i.e. the Holocene epoch)

沖積層[chuusekisou] alluvium
沖積土[chuusekido] alluvial soil
下積み[shitazumi] lowest social strata
求積[kyuuseki] mensuration
経路積分[keirosekibun] path integral (physics)