plural anniversaries
: a date that is remembered or celebrated because a special or notable event occurred on that date in a previous year
the anniversary of the invasion/attack
We are celebrating our fifth (wedding) anniversary this year. = We are celebrating the fifth anniversary of our wedding this year.
The exhibit will close on the 100th anniversary of the artist's death.
—often used before another nounan anniversary party/celebration/dinner
Cite this Entry
“Anniversary.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/anniversary. Accessed 19 Jun. 2026.
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