1. large celestial bodies that orbit a star and do not produce their own light
Usage: plural of planet

Examples

• There are eight planets in our solar system.
• Mercury and Venus are the planets closest to the Sun.
• Scientists have discovered thousands of planets orbiting other stars.
• The outer planets are much larger than the inner planets.
• Jupiter is the largest of all the planets.
• Ancient astronomers could see five planets with the naked eye.
• The planets follow elliptical orbits around the Sun.