solar system

noun

: the sun together with the group of celestial bodies that are held by its attraction and revolve around it
also : a similar system centered on another star

Examples of solar system in a Sentence

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The leading suspects have now emerged as a brown dwarf or a massive extrasolar planet, or exoplanet, many times the size of Jupiter, the solar system's largest planet. Robert Lea, Space.com, 13 Feb. 2026 In its heyday, Sullivan Solar touted a workforce of about 150 and installed more than 9,000 solar systems at homes and businesses in San Diego, Orange and Riverside counties. Rob Nikolewski, San Diego Union-Tribune, 11 Feb. 2026 Extracting water ice would provide the oxygen and hydrogen fuel necessary to turn the moon into a literal gas station for the solar system. Mrigakshi Dixit, Interesting Engineering, 11 Feb. 2026 Starship launches from Starbase Musk has often spoken about his vision of colonizing other worlds in our solar system to ensure humanity's survival in the event of an extinction-level even on Earth. Eric Lagatta, USA Today, 9 Feb. 2026 See All Example Sentences for solar system

Word History

First Known Use

circa 1704, in the meaning defined above

Time Traveler
The first known use of solar system was circa 1704

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Cite this Entry

“Solar system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20system. Accessed 20 Feb. 2026.

Kids Definition

solar system

noun
: a star with the group of heavenly bodies that revolve around it
especially : the sun with the planets, moons, asteroids, and comets that orbit it

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