成功の鍵 せいこうのかぎ Also written せいこうのカギ, 成功のカギ Meanings Expression, Noun key success factor; key to success; KSF Kanji 成 become. Read as セイ. 功 merit. Read as コウ. 鍵 key. Read as かぎ. Common phrases 成功の鍵を握る Jinuma: Japanese Dictionary · Word lists