Definition of anniversary in English:

anniversary

Syllabification: an·ni·ver·sa·ry
Pronunciation: /ˌanəˈvərsərē
 
/

noun (plural anniversaries)

  • 1The date on which an event took place in a previous year: the 50th anniversary of the start of World War II [as modifier]: anniversary celebrations
    More example sentences
    • In 2000, The New Yorker Festival was inaugurated to mark the magazine's seventy-fifth anniversary.
    • Today is the anniversary of the seige of the Alamo.
    • This year marks the 10th anniversary of his pro debut.
  • 1.1The date on which a country or other institution was founded in a previous year: Canada’s 125th anniversary
    More example sentences
    • Now JetBlue's offering a bonanza of deals, in honor of the airline's fifth anniversary.
    • In fact, at the high school's anniversary next year, they were planning to have her as a keynote speaker.
    • The college is currently in preparations for the 100th year anniversary of its opening in 1906.
  • 1.2The date on which a couple was 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.
  • 1.3 informal The date on which a romance began in a previous month or week.
    More example sentences
    • It was only when she forgot about their one month anniversary that his true nature began to surface.
    • One theme that crops up week after week are those who hit their 5 or 6 month anniversary.
    • Things progressed in this same manner, until about a week after our 3 month anniversary.

Origin

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

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody