diamond anniversary

Noun

 * 1) The 75th anniversary of some event, particularly a wedding.
 * 2) The 60th anniversary of some event, particularly a wedding.

Usage notes
The traditional usage of this term was for 75th anniversaries, keeping the order of (25th) and  (50th); but given normal ages at marriage and typical human lifespans, it is now more frequently used to celebrate 60th anniversaries with the 70th reckoned as.

Coordinate terms

 * 1st
 * 5th
 * 25th
 * 40th
 * 50th
 * 70th

Translations

 * Danish: 60-årsdag, diamantbryllup
 * Finnish: timanttihääpäivä ; 60-vuotispäivä
 * Polish: ,