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)

御腹[onaka] stomach
異腹[ifuku] child of a different mother
一人腹[hitoribara] taking for granted
横っ腹[yokoppara] side
横腹[yokobara] side

下っ腹[shitappara] abdomen
下腹[kafuku] abdomen
瀉腹[kudaribara] diarrhoea
下腹部[kafukubu] abdomen
割腹[kappuku] disembowelment