[ an-uh-vur-suh-ree ]
/ ˌæn əˈvɜr sə ri /

noun, plural an·ni·ver·sa·ries.

the yearly recurrence of the date of a past event: the tenth anniversary of their marriage.
the celebration or commemoration of such a date.


returning or recurring each year; annual.
pertaining to an anniversary: an anniversary gift. Abbreviation: anniv.

Nearby words

  1. annihilation,
  2. annihilation radiation,
  3. annihilator,
  4. anniston,
  5. anniv.,
  6. anniversary day,
  7. anniversary reaction,
  8. anno aetatis suae,
  9. anno domini,
  10. anno hebraico

Origin of anniversary

1200–50; Middle English anniversarie (< Anglo-French) < Medieval Latin (diēs) anniversāria anniversary (day), Latin anniversārius recurring yearly, equivalent to anni- (combining form of annus year) + vers(us) turned, past participle of vertere (vert- turn + -tus past participle suffix) + -ārius -ary Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for anniversary

British Dictionary definitions for anniversary


/ (ˌænɪˈvɜːsərɪ) /

noun plural -ries

the date on which an event occurred in some previous yeara wedding anniversary
the celebration of this


of or relating to an anniversary
recurring every year, esp on the same date

Word Origin for anniversary

C13: from Latin anniversārius returning every year, from annus year + vertere to turn

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for anniversary



early 13c., originally especially of the day of a person's death, from Medieval Latin anniversarium, from Latin anniversarius (adj.) "returning annually," from annus (genitive anni) "year" (see annual (adj.)) + versus, past participle of vertere "to turn" (see versus). The adjective came to be used as a noun in Church Latin as anniversaria (dies) in reference to saints' days. An Old English word for "anniversary" (n.) was mynddæg, literally "mind-day."

Online Etymology Dictionary, © 2010 Douglas Harper