the planet
From Longman Dictionary of Contemporary Englishthe planetthe planetWORLDthe world – used especially when talking about the environment a safer future for the planet → planetExamples from the Corpusthe planet• The massive volcanic eruption could affect the climate of the whole planet.• Energy conservation is vital for the future of the planet.• the future of the planet• Ozone shields the planet from the effects of the sun's ultraviolet radiation.