77th birthday
A celebratory term for one's 77th birthday, derived from the character 喜 ('joy') which can be broken down into components resembling 七十七 (77). Used in contexts of longevity celebrations.
My grandfather celebrated his 77th birthday this year.
喜の字のお祝いに家族が集まった。
The family gathered to celebrate his 77th birthday.
From the kanji 喜 ('joy'), which can be visually decomposed into the components 七 (seven), 十 (ten), and 七 (seven), representing the number 77. This playful decomposition is the basis for the term referring to the 77th birthday.