70th birthday
Refers to the celebration of one's 70th birthday, derived from a classical Chinese poem. The character 希/稀 means 'rare', as living to 70 was once uncommon.
祖父は今年、古希を迎えます。
My grandfather will celebrate his 70th birthday this year.
古希のお祝いに家族で食
Abbreviation of 古代ギリシャ語. Used in academic or linguistic contexts.
See also: 古代ギリシャ語
彼は大学で古希を専攻している。
He is majoring in Ancient Greek at university.
We went out for a family meal to celebrate his 70th birthday.
この文献は古希で書かれている。
This document is written in Ancient Greek.
古希 celebrates the 70th birthday, an earlier longevity milestone than 喜寿's 77th.
Standard kanji spelling for the 70th birthday. The character 希 is a simplification of 稀 (rare), reflecting the rarity of reaching 70 in ancient times.
Alternative kanji spelling using the original character 稀. Less common but still seen.
From a line in a classical Chinese poem by Du Fu: '人生七十古来稀' (It is rare for a person to live to seventy since ancient times). The character 希 is a simplified form of 稀 (rare).