スポイラー

noun

spoiler

Refers to a piece of information that reveals important plot details, or to a device on a vehicle that reduces lift. Context determines the meaning.

• 映えい画がのスポイラーを聞きいてしまって、がっかりした。

  I heard a spoiler for the movie and was disappointed.

• あの車くるまのリアスポイラーはかっこいいね。

  That car's rear spoiler looks cool, doesn't it?