full moon

noun

: the moon with its whole apparent disk illuminated

Examples of full moon in a Sentence

Recent Examples on the Web
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Easter Sunday routinely falls on the first full moon following the Spring Equinox. Josh Kelly, Oklahoman, 25 Mar. 2026 Get away from city lights and avoid trying to see them on the night of a full moon. Lucia Cheng, Des Moines Register, 20 Mar. 2026 In 2026, the Paschal full moon occurs April 1; therefore, Easter happens April 5. Alex Perry, Cincinnati Enquirer, 18 Mar. 2026 Back when the churches were united—around the 4th Century—the rule was set that Easter would fall on the first Sunday after the full moon following the spring equinox, which was around March 21 every year. Anna Halkidis, Parents, 16 Mar. 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

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Cite this Entry

“Full moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/full%20moon. Accessed 28 Mar. 2026.

Kids Definition

full moon

noun
: the moon with its whole disk lighted
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