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)

一翼[ichiyoku] (a) part
右翼[uyoku] right-wing (politics)
右翼団体[uyokudantai] right-wing organization (clique) (organisation)
羽翼[uyoku] wings and feathers
下げ翼[sageyoku] wing flap

左翼[sayoku] left-wing
主翼[shuyoku] main wings (of an aeroplane, airplane)
小心翼翼[shoushinyokuyoku] very timid
上翼[jouyoku] upper wing of a plane
全翼飛行機[zenyokuhikouki] flying wing

その反面[sonohanmen] on the other hand
委細面談[isaimendan] details when I see you
一面[ichimen] one face
一面観[ichimenkan] one-sided view
一面識[ichimenshiki] (a) passing acquaintance

隠面[inmen] hidden surface
右面[umen] right side
液面[ekimen] liquid surface
凹面[oumen] concavity
凹面鏡[oumenkyou] concave mirror