Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The annually recurring date of a past event, as of personal or historical importance.
  • noun A date that follows a certain event by a specified amount of time.
  • noun An event at which an anniversary is celebrated.

from The Century Dictionary.

  • Returning with the revolution of the year; annual; yearly: as, an anniversary feast.
  • In the University of Cambridge, commemoration-day, an occasion upon which degrees are conferred since the disuse of the acts. See act, n., 5.
  • noun The annually recurring date of some past event; more generally, a day set apart in each year for some commemorative observance; a day for the annual celebration of some notable event, public or private.
  • noun In the Roman Catholic Church, the yearly commemoration of the day of a person's death, by a mass offered for his soul, or such commemoration of his death daily for a year.
  • noun The act of celebrating a day on its annual recurrence; a yearly commemoration, or (rarely) something done or prepared for such commemoration.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Returning with the year, at a stated time; annual; yearly.
  • adjective (R. C. Ch.) See Anniversary, n., 2.
  • adjective [Eastern U. S.] that week in the year in which the annual meetings of religious and benevolent societies are held in Boston and New York.
  • noun The annual return of the day on which any notable event took place, or is wont to be celebrated.
  • noun (R. C. Ch.) The day on which Mass is said yearly for the soul of a deceased person; the commemoration of some sacred event, as the dedication of a church or the consecration of a pope.
  • noun The celebration which takes place on an anniversary day.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Of a significant event, a day that is an exact number of years (to the day) since the event occurred. Often preceded by an ordinal number indicating the number of years that have elapsed since the event.
  • noun loosely A day subsequent in time to a given event by some (especially significant) factor other than a year (especially as prefixed by the amount of time in question).
  • noun more specifically Such, where the event is a wedding.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the date on which an event occurred in some previous year (or the celebration of it)

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English anniversarie, from Medieval Latin (diēs) anniversāria, anniversary (day), from Latin, feminine of anniversārius, returning yearly : annus, year; see at- in Indo-European roots + versus, past participle of vertere, to turn; see wer- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the Latin adjective anniversarius ("returning yearly"), from vertere ("to turn"), + annus ("year").

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Examples

  • The timing of this anniversary is another wonderful quirk in Michigan State's dream run to the national title game in 2009, that it would come exactly three decades after Magic and Bird changed the face of their game with their classic rivalry.

    Magic gives Izzo, Michigan State an assist 2009

  • My contribution to the anniversary is an article where a dozen writers share their memories of the first time they saw Star Wars.

    Happy Star Wars Day! Tell us Your Story! 2007

  • This anniversary is a fitting symbol of the great number of links between Ontario and the United Kingdom, links of tradition, of kinship, of trade and of way of life.

    British Foreign Policy in Transition 1969

  • He bristled at the word "anniversary" and told me that he had a hard time associating that word which for him conjured up memories of celebration with one of the worst days of his life.

    Forbes.com: News Keith Levy 2011

  • Rachel Maddow observed what she called the anniversary "of the start of Newt Gingrich's collapse in political life" on her show Tuesday night.

    The Full Feed from HuffingtonPost.com The Huffington Post News Editors 2011

  • Our 10 year wedding anniversary is April 15, 2010 and we are planning a renewal ceremony.

    Camo Weddings 2009

  • Oh, and I just realized that my anniversary is next Friday!

    November Lauren Thomas 2009

  • This anniversary is one that most investors would rather forget: the tenth year after the 2000 market bubble burst.

    Retirement Planning: News, Investment Advice, Calculators & Tools - USATODAY.com 2010

  • Caroline Goulding's season-opening concert for YCA's 50th anniversary is a testament to the organization that she founded in 1961 with a simple but complex mission: to discover and launch the careers of extraordinary but unknown young musicians.

    Jim Luce: Caroline Goulding Makes Magic at Young Concert Artists 50th Anniversary Jim Luce 2010

  • Our 10 year wedding anniversary is April 15, 2010 and we are planning a renewal ceremony.

    Camo Weddings 2009

Comments

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  • So what's the monthly equivalent of this word, anyway?

    January 17, 2007

  • Try mensiversary.

    January 17, 2007

  • See this map for American pronunciation.

    April 11, 2008