supergiant

noun

su·​per·​gi·​ant ˈsü-pər-ˌjī-ənt How to pronounce supergiant (audio)
: something that is extremely large
especially : a star of very great intrinsic luminosity and enormous size
supergiant adjective

Examples of supergiant in a Sentence

Recent Examples on the Web
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Skywatchers on Saturday night will be treated to the gorgeous sight of a waxing crescent moon close to Antares, an unmistakably bright red supergiant star shining in the south. Jamie Carter, Forbes.com, 29 Aug. 2025 It is located in an extreme cluster of stars called Stephenson 2 that is home to at least 25 other red supergiants and found 18,900 light-years away in our Milky Way galaxy. Keith Cooper, Space.com, 13 Aug. 2025 Astronomers have captured images of what is thought to be Betelgeuse’s stellar companion – not only detecting a star orbiting a supergiant in a world-first, but solving a mystery that has puzzled astrophysicists for centuries. Rosie McCall, Discover Magazine, 28 July 2025 Because of its proximity to the dying supergiant star, gravitational forces will cause Betelbuddy to spiral into Betelgeuse within the next 10,000 years, per a statement from the National Science Foundation’s NOIRLab. Sara Hashemi, Smithsonian Magazine, 22 July 2025 See All Example Sentences for supergiant

Word History

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of supergiant was in 1926

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Cite this Entry

“Supergiant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supergiant. Accessed 9 Sep. 2025.

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