public domain

パブリックドメイン

著作権や特許で保護されず、誰でも使える作品や発明。

やさしい英語で： Books, images, or inventions that anyone may use because copyright or patent rules do not protect them.

• This painting is in the public domain.
• Her early novels have entered the public domain.
• Can we use music from the public domain?

使い方： in the public domain (The old illustration is in the public domain.); enter the public domain (The poem will enter the public domain next year.)

よく使う表現： the public domain, public domain works, public domain images

公知、公開情報

秘密にされず、誰でも知ったり入手したりできる情報であること。

やさしい英語で： The state of being known or available to everyone, rather than kept secret.

• The facts are in the public domain.
• These documents entered the public domain last week.
• How much information is now in the public domain?

使い方： in the public domain (The figures are already in the public domain.); into the public domain (The investigation brought those details into the public domain.)

類義語： public knowledge

よく使う表現： the public domain, in the public domain

公共財、パブリックドメイン

誰の所有でもなく、誰でも使える状態。

やさしい英語で： The state of belonging to nobody, so anyone can use it.

• The resource is in the public domain.
• They placed their shared collection in the public domain.
• Does this material belong in the public domain?

使い方： in the public domain (These shared resources are in the public domain.)

よく使う表現： the public domain, in the public domain

公有地

私人に譲渡も売却もされず、公共のために保有されている土地。

やさしい英語で： Land held for the public that has not been given or sold to a private owner.

• The valley remained in the public domain.
• Settlers claimed land from the public domain.
• The survey identified acres still in the public domain.

使い方： in the public domain (Those western lands remained in the public domain.)

類義語： public land

よく使う表現： the public domain, public domain land