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planets

NOUN

celestial body orbiting a star

Synonyms

STRONGEST

asteroid earth globe sphere world

STRONG

apple marble orb planetoid

WEAK

heavenly body luminous body terrene wandering star

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

NASA's Kepler mission transformed exoplanet science by monitoring roughly 100,000 stars and demonstrating that planets are extraordinarily common throughout the Milky Way.

From Science Daily • Jun. 1, 2026

Roman's infrared instruments will be able to observe these glowing planets and study how their brightness changes over time.

From Science Daily • Jun. 1, 2026

While the James Webb Space Telescope focuses on detailed chemical analyses of individual planets, Roman will examine broader temperature and climate patterns across thousands of worlds.

From Science Daily • Jun. 1, 2026

Some systems could produce larger planets, rockier worlds, or perhaps more planets overall.

From Science Daily • Jun. 1, 2026

To account for the planets’ bizarre behavior, Ptolemy added epicycles to his planetary clockwork: little circles within circles could explain the backward, or retrograde, motion of the planets.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife