full moon


Definition of full moon

: the moon with its whole apparent disk illuminated

Examples of full moon in a Sentence

Recent Examples on the Web

During those brief and geographically constrained moments, the brightness of the sun is reduced to that of a full moon, which can be viewed safely without anything over your eyes. Ashley Strickland, CNN, "Total solar eclipse moves across South America today," 2 July 2019 Up above Details: AccuWeather’s report says the full moon for the month of July goes by many names, including the Thunder Moon, the Buck Moon, the Ripe Corn Moon, the Hay Moon and the Old Moon. Patrick May, The Mercury News, "Watch the skies: Out-of-this world phenomena fill the calendar in July," 2 July 2019 In the hottest days of Australia's summer, just after a full moon, the Great Barrier Reef experiences an underwater snowstorm. Sarah Gibbens, National Geographic, "The Great Barrier Reef’s corals are struggling to recover fast enough," 3 Apr. 2019 By the fourth century, leaders agreed on the first Sunday after the full moon on or after the spring equinox. Scott Craven, azcentral, "Why Easter and Passover are observed on different dates each year," 28 Mar. 2018 Look up to the night sky this month to catch a glimpse of this special full moon. Doyle Rice, USA TODAY, "Look up! The 'Strawberry' moon is tonight!," 17 June 2019 This month’s Sagittarius full moon illuminates your house of community on Monday, June 17. Randon Rosenbohm, Allure, "What June's Aquarius Horoscope Predictions Mean for You," 29 May 2019 Subaru has a wide field of view, which helps the teams scour a potential search area that’s the size of 4,000 full moons. Quanta Magazine, "Why Can’t We Find Planet Nine?," 3 July 2018 This month’s full moon also marks the halfway point of the year. Susan Selasky And Emma Tomsich, Detroit Free Press, "Strawberry moon, Saturn to light up sky tonight," 27 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'full moon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of full moon

before the 12th century, in the meaning defined above

Keep scrolling for more

Learn More about full moon

Statistics for full moon

Last Updated

8 Jul 2019

Look-up Popularity

Time Traveler for full moon

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

See more words from the same century

Keep scrolling for more

More Definitions for full moon

full moon


English Language Learners Definition of full moon

: the moon when it appears as a bright circle

full moon


Kids Definition of full moon

: the moon with its whole disk lighted

More from Merriam-Webster on full moon

Rhyming Dictionary: Words that rhyme with full moon

Spanish Central: Translation of full moon

Comments on full moon

What made you want to look up full moon? Please tell us where you read or heard it (including the quote, if possible).


characterized by aphorism

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

Test your knowledge - and maybe learn something along the way.


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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