American Dictionary

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Definition anniversary in American English

anniversary noun

[countable] noun
/ˌænɪˈvɜrs(ə)ri/
1

a date when you celebrate something that happened in a previous year that is important to you

Example

our second wedding anniversary

Example

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

Synonyms and related words
Definition anniversary in American English