full moon

noun

: the moon with its whole apparent disk illuminated

Examples of full moon 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.
Called the Galactic Bulge Time-Domain Survey, this project will focus on a rather narrow band of the Milky Way’s center, a region that’s roughly eight full moons in the Earth’s night sky in size. — Adam Kovac, Scientific American, 29 Aug. 2026 Lunar eclipses always occur during a full moon when Earth is positioned between the sun and moon. — Amen Galinato, CNN Money, 27 Aug. 2026 The eclipse will coincide with the August full moon, also known as the Sturgeon Moon. — Tiffany Acosta, AZCentral.com, 27 Aug. 2026 At this time, Earth’s shadow will appear to take an increasingly large bite out of the full moon, NASA scientists say. — Adriana Pérez, Chicago Tribune, 27 Aug. 2026 See All Example Sentences for full moon

Word History

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of full moon was before the 12th century

Rhymes for full moon

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Browse Nearby Words

full monty
full moon
full-moon maple
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Cite this Entry

“Full moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/full%20moon. Accessed 1 Sep. 2026.

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Kids Definition

full moon

noun
: the moon with its whole disk lighted
Last Updated: - Updated example sentences
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