proclamation
🇺🇸
/ˌprɑːkləˈmeɪʃn/
🇬🇧
/ˌprɒkləˈmeɪʃn/
An official public announcement about something important.
The mayor's proclamation declared a city-wide holiday to celebrate the victory.
市長の布告は、勝利を祝うために全市的に休日を宣言した。