Synonyms for Planet:

n.

black hole, constellation, cosmic dust, antimatter, asteroid, dark matter, the Big Dipper, cluster, celestial object, comet. the earth, Mother Earth, the world, the planet, the globe. celestial body (noun)
heavenly body, luminous body, mars, neptune, wandering star, planetoid, uranus, saturn, venus, jupiter, pluto.
celestial body orbiting a star (noun)
globe, heavenly body, earth, wandering star, luminous body, asteroid, world, planetoid.
person (noun)
satellite.
planet (noun)
satellite.
universe (noun)
earth, heavens, nature, cosmos, creation, plenum, world, galaxy, universe, globe.

Other synonyms:

satellite
satellite.
Other relevant words:
constellation, planetoid, antimatter, asteroid, satellite, cluster, venus, wandering star, pluto, luminous body, uranus, saturn, mars, comet, neptune, heavenly body, Mother Earth, jupiter.

Usage examples for planet

  1. It was painful to her to have to recognize George's existence on the same planet as herself. – A Damsel in Distress by Pelham Grenville Wodehouse
  2. After all, what is one backward planet against the forces of my empire containing thirty- seven well- armed worlds? – The Reluctant Weapon by Howard L. Myers