1
: the Roman god of war compare ares
2
: the planet fourth in order from the sun and conspicuous for its red color see Planets Table

Examples of Mars in a Sentence

Recent Examples on the Web
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Additional analysis indicated minerals in the meteorite at one point interacted with liquid water on Mars, although a specific timeframe couldn’t be established. Andrew Paul, Popular Science, 14 Nov. 2024 The Mars Exploration Program Analysis Group plans to continue to hold discussions with industry players into next year. Michael Kan, PCMAG, 7 Nov. 2024 First, Some Facts Jupiter, the fifth planet from the Sun, is between Mars and Saturn. Benjamin Roulston, Discover Magazine, 7 Nov. 2024 While Bruno Mars doesn’t have stans like Grande, he’s been more consistent than Gaga on the charts — every one of his albums has put out at least one No. 1 single. Justin Curto, Vulture, 7 Nov. 2024 See all Example Sentences for Mars 

Word History

Etymology

Latin Mart-, Mars

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of Mars was in the 14th century

Dictionary Entries Near Mars

Cite this Entry

“Mars.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Mars. Accessed 24 Nov. 2024.

Kids Definition

Mars

noun
: the planet fourth in order from the sun see planet

More from Merriam-Webster on Mars

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