1. dates marking the yearly return of a special or notable event
Usage: plural of anniversary

Examples

• The couple celebrates their wedding anniversaries every year with a special dinner.
• The company recognizes work anniversaries with small gifts and certificates.
• Many historical anniversaries are marked with parades and ceremonies.
• She keeps track of all the important anniversaries in her calendar.
• The museum hosts special exhibitions for significant anniversaries.
• Death anniversaries are often observed with memorial services.
• Golden wedding anniversaries mark fifty years of marriage.