大同生命保険 だいどうせいめいほけん Meanings Noun Daido Life Insurance Kanji 大 big. Read as ダイ. 同 same. Read as ドウ. 生 life. Read as セイ. 命 life. Read as メイ. 保 keep 険 peril. Read as ケン. Jinuma: Japanese Dictionary · Word lists