0 a silver wedding anniversary --
1 a celebration of the 25th year of something, esp. a marriage --
Coincidentally, both organisations celebrate their silver anniversaries this year.
The 2006 festival, the silver anniversary, featured nine days of silent films all with live musical accompaniment.
In 2014, the festival celebrates its twenty-fifth silver anniversary.
This rating is the icing on our silver anniversary cake.
A silver anniversary is another good time to take stock, to reflect upon and refresh priorities and directions.
