The AI-powered English dictionary
plural anniversaries
A day that is an exact number of years (to the day) since a given significant event occurred. Often preceded by an ordinal number indicating the number of years.
(especially) Such a day that commemorates a wedding. examples
(loosely) A day subsequent in time to a given event by some significant period other than a year (especially as prefixed by the amount of time in question). quotations examples
The occasion was the six-month anniversary of the Aug. 8 coup that brought General Óscar Humberto Mejía Victores to power.
1984 February 27, “Never Mind the Tranquil Facade”, in Time
In a thinly veiled threat to Saddam Hussein, President George Bush marked the six-month anniversary of September 11th by reiterating America's commitment to prevent rogue countries obtaining weapons of mass destruction.
2002 March 14, ‘Politics this Week’, The Economist
Jonathon proposed to his [Jess's] mom on their three-month anniversary of meeting and married her on their fourth.
2006, DB Schrock, Soulmonger Dot Com, page 28