Planet ˈplænɪt Solar System Life Save Noun Earth/Venus/Mars

• the planets of our solar system
• the planet earth/venus/mars
• the possibility of life deep below the planet's surface
• the battle to save the planet

planet

1. a large round object in space that moves around a star (such as the sun) and receives light from it
• the planets of our solar system
• the planet Earth/Venus/Mars
• the possibility of life deep below the planet's surface

Extra Examples

• He looked like something from another planet!
• How many planets orbit the sun?
• Hubble has found around 100 new extrasolar planets.
• She believes there is life on other planets.
• The spacecraft is currently in orbit around the red planet.
• creatures from an alien planet
• rocky planets like Venus and Mars
• the outer planets of our solar system
• the search for Earth-like planets
2. used to mean ‘the world’, especially when talking about the environment
• the battle to save the planet
• He must be one of the few people on the planet without a website.

Extra Examples

• Will recycling help save the planet?
• We are destroying the planet with our fossil-fuel lifestyle.
• I don't know a single other person on the planet who has seen this film.
3. used to suggest that somebody’s ideas are not realistic or practical
• He thinks being a father is easy. What planet is he on?

Word Origin

• Middle English: from Old French planete, from late Latin planeta, planetes, from Greek planētēs ‘wanderer, planet’, from planan ‘wander’.