annum

== English == === Etymology === From Latin per annum (“yearly”), from annus (“year”). === Noun === annum (plural annums) Synonym of year. Alternative form: a (symbol) (uncommon) A one-year period, particularly (finance) a fiscal year or (sciences) a Julian year of exactly 365.25 days. Coordinate terms: biennium, triennium, quadrennium, quinquennium, sexennium, septennium, octennium, novennium, decennium, vicennium, tricennium, centennium, quincentennium, millennium, decamillennium, centimillennium, millionennium (uncommon, astronomy, science fiction) A "year" determined by the revolution of an extraterrestrial planet. ==== Usage notes ==== Most frequently used in the set phrase per annum or compounds used in scientific dating. ==== Alternative forms ==== (abbreviation) a., ann. ==== Derived terms ==== kiloannum, mega-annum, giga-annum === Anagrams === nanmu, unman == Latin == === Noun === annum m accusative singular of annus (“year”) === See also === gigaannum kiloannum megaanum per annum