any of the nine celestial bodies that move round our sun in various elliptical orbits
(the planet) the earth
any of the celestial bodies, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, or Pluto (Pluto now being classed as a dwarf planet), that move round our sun in various elliptical orbits
like some watcher of the skies when a new planet swims into his ken — Keats
(the planet) the Earth
any celestial body which orbits a star and which is of substantial size but is not massive enough to become a star itself
in astrology, any of the nine celestial bodies that orbit our sun, together with the sun and moon, thought of in terms of their influence on a person's life, etc
the sphere of activity of (a person or group)
Who's dating whom on Planet Celeb?
informal out of touch with reality