3. (noun)year the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun "a Martian year takes 687 of our days"
4. (noun)class, year a body of students who graduate together "the class of '97"; "she was in my year at Hoehandle High"
1. (noun)year a period of twelve months Next week, it'll be exactly two years since he died.; I traveled for several years after college.; Who knows what he'll be doing in 5 years' time.
2. year the period between January 1 and December 31 What year did they get married?; 1964 and the three years after that; at the beginning/end of the year
3. year the grade a student is in What year are you in?
4. year three/twelve/fifty etc. years old indicates age He's been reading since he was four years old.
5. year the academic/financial/tax etc. year a period of time during which an organization completes its activities the eight months of the academic year
Definition of 'Year'
Webster Dictionary
1. (noun)Year the time of the apparent revolution of the sun trough the ecliptic; the period occupied by the earth in making its revolution around the sun, called the astronomical year; also, a periodmore or less nearly agreeing with this, adopted by various nations as a measure of time, and called the civil year; as, the common lunar year of 354 days, still in use among the Mohammedans; the year of 360 days, etc. In common usage, the year consists of 365 days, and every fourthyear (called bissextile, or leap year) of 366 days, a day being added to February on that year, on account of the excessabove 365 days (see Bissextile)
Sense: the period of time the earth takes to go once round the sun, about 365 days We lived here for five years, from November 1968 to November 1973; a two-year delay.