'Diamond jubilee' definitions:
Definition of 'diamond jubilee'
From: WordNet
noun
An anniversary celebrating the passage of 60 years
Definition of 'Diamond jubilee'
From: GCIDE
- Diamond anniversary \Diamond anniversary\, Diamond jubilee \Diamond jubilee\, etc. an anniversary celebrated upon the completion of sixty, or, according to some, seventy-five, years from the beginning of the event commemorated. [Webster 1913 Suppl.]