What does "commemorative" mean? In what circumstances could I use it?

Native speaker’s answer
Rebecca
"Commemorative" is an adjective! It means that something acts as a memorial or mark of an event or person. It's usually used for big or significant moments in one's life and events that happen. Ex: We got commemorative rings for the ceremony. Ex: The commemorative plaque will arrive at the school tomorrow and placed above the door in honor of our former principal.