Pluto
noun
Plu·to
ˈplü-(ˌ)tō 
1
: the Greek god of the underworld compare dis
2
[New Latin]
: a dwarf planet occupying an orbit that crosses the orbit of Neptune
Is Pluto a planet?: Usage Guide
In 2006 the International Astronomical Union defined planet in such a way as to exclude Pluto, reclassifying it instead as a dwarf planet. Although discussion of the matter continues, the change has been widely accepted.
Examples of Pluto in a Sentence
Recent Examples on the Web
Ammonite is a trans-Neptunian object, a designation derived from its discovery beyond the orbits of Neptune and Pluto in a region of the outer solar system that astronomers know relatively little about.
—
Jamie Carter, Forbes.com, 24 July 2025
In his most recent role, McCarthy added oversight of the company’s streaming division, encompassing Paramount+ and Pluto TV, in addition to his duties as President of Showtime/MTV Entertainment.
—Nellie Andreeva, Deadline, 24 July 2025
McCarthy is also president of Showtime/MTV Entertainment and oversees the company’s streaming platforms Paramount+ and Pluto TV.
—Rick Porter, HollywoodReporter, 24 July 2025
Read on for what the sun opposite Pluto means for your zodiac sign.
—Valerie Mesa, People.com, 24 July 2025
See All Example Sentences for Pluto
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Jamie Carter, Forbes.com, 24 July 2025
In his most recent role, McCarthy added oversight of the company’s streaming division, encompassing Paramount+ and Pluto TV, in addition to his duties as President of Showtime/MTV Entertainment.
—Nellie Andreeva, Deadline, 24 July 2025
McCarthy is also president of Showtime/MTV Entertainment and oversees the company’s streaming platforms Paramount+ and Pluto TV.
—Rick Porter, HollywoodReporter, 24 July 2025
Read on for what the sun opposite Pluto means for your zodiac sign.
—Valerie Mesa, People.com, 24 July 2025
See All Example Sentences for Pluto
Cite this Entry
“Pluto.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pluto. Accessed 29 Jul. 2025.
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