Meaning & Definition of Planet in English

1. (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light

• Mercury, venus, earth, mars, jupiter, saturn, uranus, neptune, and pluto in order of their proximity to the sun

• Viewed from the constellation hercules, all the planets rotate around the sun in a counterclockwise direction

2. A person who follows or serves another

3. Any celestial body (other than comets or satellites) that revolves around a star