花か柳りゅう界かいTop 25000MeaningsNoun1. red-light district; pleasure quarters; world of the geisha; demimondeKanji used花flower柳willow tree界realmPitch accentかりゅうかいComposed of花か柳りゅうred-light districtNoun界かいcommunity; circles; world; kingdom; erathem; field (electrical); border; boundary; divisionSuffix