ˌsilver ˈwedding anniˌversary BrE AmE ( also silver anniversary ) noun [countable]
the date that is exactly 25 years after the date of a wedding:
a party to celebrate their silver wedding anniversary
ˌsilver ˈwedding anniˌversary BrE AmE ( also silver anniversary ) noun [countable]
the date that is exactly 25 years after the date of a wedding:
a party to celebrate their silver wedding anniversary
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012