a calendar year

the first day of a calendar year

a period of time occupying a regular part of a calendar year that is used for some particular activity n

the end of a calendar year s

n a late time of life n a prolonged period of time n the time during which someone's life continues n a period of time containing 365 (or 366) days n a period of time occupying a regular part of a calendar year that is used for some particular activity n the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun n a body of students who graduate together