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.
None Impacted severely in 2025 by a nearly full moon, the peak of the Perseids returns for 2026 under a new moon and exceptionally dark skies. Michael D'estries, Travel + Leisure, 16 Jan. 2026 What are some other names for February's full moon? Seth Jacobson, The Providence Journal, 13 Jan. 2026 Under the noonday sun while fishing, or stealing light from the full moon, the point of his pencil traced the imaginary movements of the washers, threads, coil springs, cylinders, bolts, and screws that had long enriched the workings of his mind. Literary Hub, 12 Jan. 2026 Upcoming full moons These times mark the exact instant of full illumination. Anthony Wood, Space.com, 8 Jan. 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

Cite this Entry

“Full moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/full%20moon. Accessed 22 Jan. 2026.

Kids Definition

full moon

noun
: the moon with its whole disk lighted
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!