earth

地球

人間や動物、植物が暮らしている惑星。

やさしい英語で： The planet where people, animals, and plants live.

• We live on Earth.
• The Earth moves around the sun.
• Astronauts photographed Earth from space.

類義語： world, globe

よく使う表現： planet earth, on earth, earth’s surface

土、土壌

地面を覆い、植物が根を張って育つ柔らかい物質。

やさしい英語で： The loose material on the ground in which plants grow.

• The earth was soft after the rain.
• She dug a hole in the earth.
• Fresh earth covered the roots of the tree.

類義語： soil, dirt

よく使う表現： damp earth, dig the earth, patch of earth

土砂

地面を構成する土や砂、砕けた岩などの物質。

やさしい英語で： Material from the ground, such as soil, sand, or broken rock.

• Trucks carried earth away from the site.
• The wall was built from packed earth.
• Workers removed tons of earth to make the tunnel.

類義語： ground material

よく使う表現： excavated earth, pile of earth, move the earth

地球、世界

私たちの地球に似た惑星や、想像上の世界。

やさしい英語で： A planet or imagined world similar to the one where we live.

• The story takes place on another earth.
• Scientists searched for a second earth among distant planets.
• The travelers discovered several earths in parallel universes.

類義語： world, planet

よく使う表現： another earth, parallel earth, different earth

土、地

古代の思想で、空気・火・水とともに世界を作るとされた基本物質。

やさしい英語で： One of the basic materials ancient thinkers believed made up the world, along with air, fire, and water.

• Earth was one of the classical elements.
• The philosopher linked earth with solid matter.
• The diagram places earth beside water.

よく使う表現： earth element, earth and water, earth and fire

土

中国の伝統思想の五行の一つで、土・安定・中心と結びつくもの。

やさしい英語で： One of five forces in traditional Chinese thought, associated with soil, stability, and the center.

• Earth is one of the five Chinese elements.
• This chart places earth at the center.
• The cycle connects earth with metal.

よく使う表現： earth element, earth and metal, earth phase

接地する、アースする

不要な電流が安全に流れるよう、電気機器を地面につなぐ。

やさしい英語で： To connect electrical equipment to the ground so unwanted electricity can flow away safely.

• You must earth this appliance.
• The electrician earthed the metal casing.
• Is the equipment properly earthed?

類義語： ground

よく使う表現： earth an appliance, earth electrical equipment, earth the circuit