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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Governed by Mars, this Fire sign plays to win, similar to Zedd's passion for football in his pursuit of earning a scholarship. Valerie Mesa, People.com, 13 June 2025 This will take time and may impact the mission's timeline, which would have seen Rosalind Franklin head to Mars in 2028. Robert Lea, Space.com, 12 June 2025 Or what if the first network on the Moon becomes the catalyst and the springboard to finally reaching Mars and having off planet human settlements? Cathy Hackl, Forbes.com, 12 June 2025 Leto is currently on tour with his band 30 Seconds to Mars through the end of summer. Matt Donnelly, Variety, 11 June 2025 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

Browse Nearby Words

Cite this Entry

“Mars.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Mars. Accessed 17 Jun. 2025.

Kids Definition

Mars

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

More from Merriam-Webster on Mars

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!