How to read: ほたるざわ
Pronunciation: 
Names and idioms with total stroke of 18:
犬種 北吉見 遮切 不行屆 故俗
Names and idioms similar to 蛍沢:
参沢 東中沢 簗沢 下中沢 蒲野沢稲崎
Yojijukugo(idioms with 4 Kanji characters) including 蛍沢:
蛍窓雪案 贅沢三昧 涸沢之蛇
Proverbs including 蛍沢:
鳴く蝉よりも鳴かぬ蛍が身を焦がす 律義者の子沢山 貧乏人の子沢山