vigentennial / ˌvaɪ dʒɛnˈtɛn i əl /

🎓大学词汇百年纪念百年老店周年纪念纪念日

vigentennial 的定义

n. 名词 noun
  1. a 20th anniversary.
  2. a celebration, meeting, reunion, etc., commemorating such an anniversary.