優ゆう等とう賞しょう状じょう

noun

grand-prize diploma; certificate of excellence

A formal certificate awarded for outstanding achievement, often in academic or competition contexts.

• 彼かれは全ぜん国こく大たい会かいで優ゆう等とう賞しょう状じょうをもらった。

  He received a grand-prize diploma at the national competition.