diamond anniversary

English

Noun

diamond anniversary (plural diamond anniversaries)

  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 silver (25th) and golden (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 platinum.

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