网页2024年3月26日 · Grade: 6. こく. Jinmeiyō. on’yomi. For pronunciation and definitions of 亡國 – see the following entry. 【 亡国 ぼうこく 】. [noun] the destruction of a country. [noun] a perished / destroyed country. (This term, 亡國, is the kyūjitai of the above term.)