plural galaxies
Synonyms of galaxynext
1
a
often Galaxy : milky way galaxy
used with the
b
: any of the very large groups of stars and associated matter that are found throughout the universe
2
a
: an assemblage of brilliant or notable persons or things
a galaxy of artists
b
: world sense 11
… remained galaxies apart on the issue …Newsweek

Did you know?

The system of stars that includes our sun looks, in the night sky, like a broad band of light. We call this band the Milky Way. The idea of the whiteness of the Milky Way being similar to that of milk is much older than the English language, however. Galaxias, the Greek word for the Milky Way, was derived from the Greek gala, “milk.” English galaxy, derived from Greek galaxias, was not used until the 19th century as a generic term for other star systems as well as the one in which we live.

Examples of galaxy in a Sentence

The event was attended by a galaxy of artists. they're a galaxy apart when it comes to politics
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.
Over its five-year prime mission, Roman is expected to map more than two billion galaxies and collect about 20 petabytes of science data, creating the largest panoramic surveys ever made from space. Jamie Carter, Forbes.com, 29 Aug. 2026 Because of its large field of view, the Nancy Grace Roman Space Telescope will help researchers better understand dark matter by capturing how the phenomenon's gravity bends light and distorts a galaxy's shape. Matthew Glasser, ABC News, 29 Aug. 2026 Dark matter is thought to be the invisible material that makes up most of the matter in galaxies. Denise Chow, NBC news, 29 Aug. 2026 During its mission, Roman could measure light from more than a billion galaxies and discover thousands of new worlds beyond our solar system. Jennifer Borresen, USA Today, 28 Aug. 2026 See All Example Sentences for galaxy

Word History

Etymology

Middle English galaxias, galaxie, borrowed from Late Latin galaxias, borrowed from Greek galaxías (probably originally conjoined with kýklos "wheel"), from galakt-, stem of gála "milk" (going back to Indo-European *glkt-, attested elsewhere only in Latin lact-, lac "milk," Armenian kat'n) + -ias, noun suffix, especially of natural phenomena

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of galaxy was in the 15th century

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Cite this Entry

“Galaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/galaxy. Accessed 30 Aug. 2026.

Kids Definition

plural galaxies
1
2
: one of the very large groups of stars and other matter that are found throughout the universe
Etymology

Middle English galaxie "the Milky Way," from Latin galaxias (same meaning), from Greek galaxias "Milky Way," from galakt-, gala "milk"

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