jubilee
🇺🇸
/ˈdʒuːbɪliː/
🇬🇧
/ˈdʒuːbɪliː/
An event or anniversary that is celebrated for its 25th, 50th, or 60th year.
The school's jubilee was a grand event with many former students returning to celebrate.
学校の記念日は、多くの元生徒が帰って祝いに来る盛大なイベントでした。