古希 こき Also written 古稀 Meanings Noun 70th birthday ancient Greek (language) See also: 古代ギリシア語 (こだいギリシャご). Kanji 古 old. Read as コ. 希 hope. Read as キ. Words containing 古希 七十古希 (しちじゅうこき) men seldom live to be seventy Jinuma: Japanese Dictionary · Word lists