planet
1 ENTRIES FOUND:
plural
planets
plural
planets
Britannica Dictionary definition of PLANET
1
[count]
:
a large, round object in space (such as the Earth) that travels around a star (such as the sun)
2
the planet
:
the planet Earth
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We must help preserve the planet. = We must help preserve the planet's environment.
3
— used in informal phrases to say that someone is not aware of what is really happening or has ideas that are not realistic or practical
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You think they'll help us? Are you (living) on another planet?
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What planet are you living on?
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She looked at me as if I were someone from another planet.
