planet
word
Definition
A planet is a very large round object in space that moves around a star, such as Earth moving around the Sun. In everyday use, it can also refer specifically to Earth as the world we live on.
Usage & Nuances
Most often used in science or general knowledge contexts: 'a planet', 'the planets', 'planet Earth'. Don't confuse it with 'star' or 'moon'. In everyday speech, 'save the planet' usually means protecting the environment on Earth, not all planets.
Example Sentences
Earth is the planet we live on.
basic
Mars is a red planet.
basic
Jupiter is the biggest planet in our solar system.
basic
Sometimes it feels like this city is on a different planet.
natural
When he starts talking about space, he acts like he knows every planet by heart.
natural
We need to do more if we want to protect the planet.
natural