What is the meaning of years?

noun

• A period of time containing 365 (or 366) days.
  • usage: "she is 4 years old"; "in the year 1920"
  • synonyms: year, twelvemonth, yr
• A period of time occupying a regular part of a calendar year that is used for some particular activity.
  • usage: "a school year"
  • synonyms: 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.
  • usage: "a Martian year takes 687 of our days"
  • synonyms: year
• A body of students who graduate together.
  • usage: "the class of '97"; "she was in my year at Hoehandle High"
  • synonyms: class, year
• A late time of life.
  • usage: "old age is not for sissies"; "he's showing his years"; "age hasn't slowed him down at all"; "a beard white with eld"; "on the brink of geezerhood"
  • synonyms: old age, age, eld, geezerhood
• A prolonged period of time.
  • usage: "we've known each other for ages"; "I haven't been there for years and years"
  • synonyms: long time, age
• The time during which someone's life continues.
  • usage: "the monarch's last days"; "in his final years"
  • synonyms: days