anniversary - definition and synonyms

 
 
noun [countable] 

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/ˌænɪˈvɜː(r)s(ə)ri/
singularanniversary
pluralanniversaries
  1. a date when you celebrate something that happened in a previous year that is important to you

    our second wedding anniversary

    There was a concert to mark the 10th anniversary of Mandela’s release from jail.