甲論乙駁 こうろんおつばく Meanings Noun, する verb, Intransitive arguments pro and con Kanji 甲 armor. Read as コウ. 論 argument. Read as ロン. 乙 latter. Read as オツ. 駁 refutation; contradiction. Read as ハク. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists