Noun:

हीरक महोत्सवी,

diamond anniversary's Usage Examples:

"Impactful publishing: the Journal of Neurosurgery and its diamond anniversary (1944–2019)".

travelled to Chile as a part of the Duke of Edinburgh"s Award"s diamond anniversary, and visited projects by British and Commonwealth Fire and Rescue.

The character is named after a diamond anniversary (75 years), and because she is "one of the hardest substances known.

to Club Libertad of Paraguay in the first round Celebrating its diamond anniversary in 2017, the side was playing in the first division and the Copa.

be rectified until 20 years later until expanded silver, gold and diamond anniversary editions were prepared - some using pristine previously-unheard safety.

in 1993 with a "75" logo uniform patch, one year before the NFL"s diamond anniversary.

Views of the Toledo Commerce Club rooms as seen in "Bramble"s views Toledo, Ohio : diamond anniversary 1837-1912".

Synonyms:

bimillennium, quatercentennial, wedding anniversary, sesquicentennial, day of remembrance, bimillenary, tercentenary, centennial, quatercentenary, quincentenary, bicentenary, millennium, jubilee, quincentennial, millenary, triennial, bicentennial, tercentennial, centenary, semicentenary, day, semicentennial, birthday,

Antonyms:

aperiodic, day, night, time off,