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
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.
Both have the same manually wound movement (the in-house CH 29-535 PS Q) with apertures for day/night, day, month, leap year, and moon phases, plus an instantaneous 30-minute counter and a small seconds subdial. — Rachel Cormack, Robb Report, 7 Nov. 2026 You’re probably used to the month of February having an extra day every four years, during the leap year. — Vahe Peroomian, The Conversation, 8 Oct. 2026 Shirilla argued that the clock should have started later, when juvenile bindover transcripts were filed, and also pointed to the 2024 leap year. — Michael Sinkewicz, FOXNews.com, 2 Sep. 2026 That is, 1600 was a leap year, but 1700, 1800, and 1900 were not. — Encyclopedia Britannica, 2 July 2026 See All Example Sentences for leap year

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

Cite this Entry

“Leap year.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leap%20year. Accessed 12 Nov. 2026.

Kids Definition

leap year

noun
: a year in the Gregorian calendar containing 366 days with February 29 as the extra day

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