anniversary · noun C /ˌæn.əˈvɜr.sə.ri/
anniversary
B1 the day on which an important event happened in a previous year
Dictionary examples:
We always celebrate our wedding anniversary with dinner at an expensive restaurant.
Tomorrow is the fiftieth anniversary of the revolution.
Learner example:
She and her husband are touring Europe for a second honeymoon, [on the] 10th anniversary of their marriage. (Preliminary English Test; B1; Japanese)
