Vocabulary What does 雨水 (あまみず, amamizu) mean? 雨水 (あまみず, amamizu) means rain water. Quick factsReadingあまみずRomajiamamizuPart of speechnoun 雨水あまみずamamizurain water1noun rain water2noun "rain water" solar term (approx. February 19)Kanji in this word雨rain水water