year

noun

1. 1

   a body of students who graduate together

   the class of '97

   she was in my year at Hoehandle High

2. 2

   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

3. 3

   a period of time containing 365 (or 366) days

   she is 4 years old

   in the year 1920

4. 4

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

   a school year