盛せい挙きょせいきょじ字FuriganaMeanings1noungrand undertaking; large-scale projectA somewhat formal or literary term for a major, impressive endeavor or event. Often used in written contexts such as news articles or formal speeches.この国こく際さい会かい議ぎは、まさに世せい紀きの盛せい挙きょと言いえるだろう。This international conference can truly be called a grand undertaking of the century.