noun
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.
祖父は今年、喜の字を迎えました。
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.