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leap year

noun
1.
(in the Gregorian calendar) a year that contains 366 days, with February 29 as an additional day: occurring in years whose last two digits are evenly divisible by four, except for centenary years not divisible by 400.
2.
a year containing an extra day or extra month in any calendar.
Compare common year.
Origin of leap year
1350-1400
1350-1400; Middle English lepe yere
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for leap year
  • The additional day in a leap year keeps the calendar in sync with the seasons.
  • The formula is a true yield annualized calculation, which is also adjusted to reflect leap year, when necessary.
  • The program knows which years are leap years and will display a check-mark to denote a leap year.
  • Many published algorithms ignore the leap year cycle and treat each year as any other year.
British Dictionary definitions for leap year

leap year

noun
1.
a calendar year of 366 days, February 29 (leap day) being the additional day, that occurs every four years (those whose number is divisible by four) except for century years whose number is not divisible by 400. It offsets the difference between the length of the solar year (365.2422 days) and the calendar year of 365 days
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for leap year
n.

late 14c., from leap (v.) + year. So called from its causing fixed festival days, which normally advance one weekday per year, to "leap" ahead one day in the week.

Online Etymology Dictionary, © 2010 Douglas Harper
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Word Value for leap

6
8
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