Dictionary/湖沼こしょうKoshou湖沼 (Koshou) is a Japanese noun meaning “lake, marsh, wetland, inland waters”.Meaningsnounlake; marsh; wetland; inland watersKanji in 湖沼湖lake沼marshRelated words沼田deep-mud paddy湖lake沼marsh泥沼bog琵琶湖Lake Biwa湖畔lakeside沼地marshland湖水lake沼沢marsh