沈菜[kimuchi] kimchi
意気銷沈[ikishouchin] depressed in spirits
遠沈[enchin] sediment
泣沈む[nakishizumu] to abandon oneself to grief
撃沈[gekichin] sending a ship to the bottom

沈む[shizumu] to sink
沈める[shizumeru] to sink
沈下[chinka] sinking
沈降[chinkou] precipitate
沈思[chinshi] contemplation

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)