anniversary /m'vxsan; , sens'vz-8sri/ n - [C] (pl -ries) yearly return of the date of an event; celebration of this: 周年紀(jì)念日; 周年紀(jì)念： my wedding ~; 我的結(jié)婚周年紀(jì)念; the ~ of Shakespeare's birth; 莎士比亞誕辰紀(jì)念日; an ~ dinner, one held to celebrate an ~. 周年紀(jì)念餐會(huì)。