ききゅうそんぼう 危急存亡 LinksSentence search for 危急存亡Sentence search for ききゅうそんぼうKanji details for 危, 急, 存 and 亡Edit in JMdict Noun1. life-and-death matter; an emergency or crisis where survival is threatenedYojijukugo (four character compound) Discussions Log in to talk about this word.