防衛大臣 ぼうえいだいじん Meanings Noun Minister of Defense; Minister of Defence See also: 防衛相 (ぼうえいしょう). Kanji 防 defend. Read as ボウ. 衛 guard. Read as エイ. 大 big. Read as ダイ. 臣 retainer. Read as シン. Common phrases 防衛大臣を務める Jinuma: Japanese Dictionary · Word lists