What is the meaning of Annum?

Synonym of year, particularly

  1. A one-year period, particularly a fiscal year or a Julian year of exactly 365.25 days.

    A one-year period, particularly a fiscal year or a Julian year of exactly 365.25 days.

    A "year" determined by the revolution of an extraterrestrial planet.

    accusative singular of annus (year)

    Source: wiktionary.org