Dictionary

year

noun \ˈyir\

: a unit of time that is equal to 12 months or 365 or sometimes 366 days

: the regular period of 12 months that begins in January and ends in December

—used to refer to the age of a person

Full Definition of YEAR

1
a :  the period of about 3651/4 solar days required for one revolution of the earth around the sun
b :  the time required for the apparent sun to return to an arbitrary fixed or moving reference point in the sky
c :  the time in which a planet completes a revolution about the sun <two Mercury years>
2
a :  a cycle in the Gregorian calendar of 365 or 366 days divided into 12 months beginning with January and ending with December
b :  a period of time equal to one year of the Gregorian calendar but beginning at a different time
3
:  a calendar year specified usually by a number <died in the year 1900>
4
plural :  a time or era having a special significance <their glory years>
5
a :  12 months that constitute a measure of age or duration <her 21st year> —often used in combination <a year-old child>
b plural :  age <wise beyond her years>; also :  the final stage of the normal life span
6
:  a period of time (as the usually 9-month period in which a school is in session) other than a calendar year
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Origin of YEAR

Middle English yere, from Old English gēar; akin to Old High German jār year, Greek hōros year, hōra season, hour
First Known Use: before 12th century

Other Calendar Terms

antedate, estival, gloaming, luster, sesquicentennial
YEAR Defined for Kids

year

noun \ˈyir\

Definition of YEAR for Kids

1
:  the period of about 36514 days required for the earth to make one complete trip around the sun
2
:  a period of 365 days or in leap year 366 days beginning January 1
3
:  a fixed period of time <the school year>
4
:  the age of a person <a six-year old>
5
:  a long time <We've been standing in line for a year.>
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