What does "annum" mean?

Synonym of year.; A one-year period, particularly (finance) a fiscal year or (sciences) a Julian year of exactly 365.25 days.

Annum

Common synonyms include: abundant year, academic year, bissextile year, calendar month, calendar year, century.

noun

noun ·2 syllables ·Uncommon ·Advanced level

Noun

1
Synonym of year.; A one-year period, particularly (finance) a fiscal year or (sciences) a Julian year of exactly 365.25 days. uncommon
2
(Latin) year wordnet
3
Synonym of year.; A "year" determined by the revolution of an extraterrestrial planet. uncommon

From Latin per annum (“yearly”), from annus (“year”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.