Dictionary/清流せいりゅうSeiryuu清流 (Seiryuu) is a Japanese noun meaning “clear stream”.Meaningsnounclear streamKanji in 清流清pure流currentRelated words流way澄むto become clear (water, air, etc.)流石as one would expect流れるto stream流すto drain流行るto be popular清いclean一流first-class交流exchange (e.g. cultural)合流confluence (of rivers)流出outflow清掃cleaning