環境改善 かんきょうかいぜん Meanings Noun environmental improvement; environment reform; habitat improvement Kanji 環 loop. Read as カン. 境 border. Read as キョウ. 改 reform. Read as カイ. 善 virtue. Read as ゼン. Words containing 環境改善 緑化推進環境改善協会 (りょくかすいしんかんきょうかいぜんきょうかい) Society for the Development of Greenspaces Jinuma: Japanese Dictionary · Word lists