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leap year
noun
1
: a year in the Gregorian calendar containing 366 days with February 29 as the extra day
2
: an intercalary year in any calendar
Examples of leap year in a Sentence
Recent Examples on the Web
The 42mm platinum case houses an anthracite dial that displays an automatic minute repeating perpetual calendar, mono-pusher chronograph, moon phases, leap year and day-night indication.
—Anthony Demarco, Forbes, 7 Dec. 2024
Choosing February for the leap year dates back way before many modern-day countries were even formed.
—Joyce Orlando, The Tennessean, 29 Feb. 2024
The holiday always occurs on the fourth Thursday of November, but the dates can differ based on leap years.
—Alex Perry, The Enquirer, 18 Nov. 2024
But every four years, February is extended to 29 days during what is commonly referred to as a leap year.
—Danny Davis, Austin American-Statesman, 29 Feb. 2024
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Word History
First Known Use
14th century, in the meaning defined at sense 1
Time Traveler
The first known use of leap year was
in the 14th century
Dictionary Entries Near leap year
Cite this Entry
“Leap year.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leap%20year. Accessed 18 Jan. 2025.
Kids Definition
leap year
noun
: a year in the Gregorian calendar containing 366 days with February 29 as the extra day
More from Merriam-Webster on leap year
Nglish: Translation of leap year for Spanish Speakers
Britannica.com: Encyclopedia article about leap year
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