名詞 commemorative:

1. an object (such as a coin or postage stamp) made to mark an event or honor a person

形容詞 commemorative:

1. intended as a commemoration
   同義詞：commemorating

1. The new set of stamps will be issued as the commemorative.
   這套新郵票將作為紀念物品發(fā)行。
2. The Royal Mint will strike a commemorative gold coin.
   英國皇家造幣廠將鑄造一種紀念金幣。

com.mem.o.ra.tive

adj.（形容詞）
Honoring or preserving the memory of another.
紀念性的：紀念另一事或保存其記憶的
n.（名詞）
Something that honors or preserves the memory of another.
紀念品：紀念或保持另一事的某事