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anniversary Line breaks: an¦ni|ver¦sary
Pronunciation: /anɪˈvəːs(ə)ri/

Definition of anniversary in English:

noun (plural anniversaries)

1The date on which an event took place or an institution was founded in a previous year: the 50th anniversary of the Battle of Britain the 75th anniversary of the RAF
More example sentences
  • The celebrations marking the 60th anniversary of the event have been unprecedented in scope.
  • Postage stamps are often issued to commemorate the anniversary of an important event.
  • This month marks the 70th anniversary of the opening of the first drive-in theater.
jubilee, commemoration
1.1The date on which a couple were married in a previous year: he even forgot our tenth anniversary!
More example sentences
  • Who else can say they got divorced on the tenth anniversary of their wedding?
  • No matter how old you are it is important not to forget your wedding anniversary as Pat Evans found out to his cost last week.
  • A couple approaching their golden anniversary have thanked the Lord for 50 years of marital bliss.


Middle English: from Latin anniversarius 'returning yearly', from annus 'year' + versus 'turning'.

  • annual from Late Middle English:

    This comes via Old French from late Latin annualis, based on Latin annus ‘year’. The notion of a ‘yearbook’ recording events of the past year, arose in the late 17th century. From the same word we get annals (mid 16th century) from Latin annales (libri) ‘yearly (books)’ giving a historical record of the events throughout each year; anniversary (Middle English) ‘returning yearly’; annuity (Late Middle English) something paid ‘yearly’; perennial (mid 17th century) ‘[lasting] through the year’; and the Latin phrases annus horribilis ‘year of disasters’ and annus mirabilis ‘wonderful year’.

Words that rhyme with anniversary

bursary, cursory, mercery, nursery
Definition of anniversary in:
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