暗い[kurai] dark
暗がり[kuragari] darkness
暗に[anni] implicitly
暗やみ[kurayami] darkness
暗うつ[anutsu] gloom

暗雲[anun] dark clouds
暗褐色[ankasshoku] dark brown
暗きょ[ankyo] subterranean drain
暗君[ankun] foolish ruler
暗号[angou] code

ヨガの流行[yoganoryuukou] the cult of yoga
亜流[aryuu] bad second
暗流[anryuu] undercurrent
一次電流[ichijidenryuu] primary current
一流[ichiryuu] first-class

溢流[itsuryuu] overflow
渦流[karyuu] swirling current
押流す[oshinagasu] to wash away
横流し[yokonagashi] diversion into illegal channels
横流れ[yokonagare] flowing into the black market