commemorative
🇺🇸
/kəˈmeməreɪtɪv/
🇬🇧
/kəˈmemərətɪv/
used to remember and honor something important from the past
They released a commemorative coin to honor the 100th anniversary of the event.
他们发行了一枚纪念币来纪念该事件的100周年。