centenary
noun /senˈtiːnəri/
  /senˈtenəri/
 (plural centenaries)
 (especially British English) (North American English usually centennial)
- the 100th anniversary of an event- The club will celebrate its centenary next year.
- the centenary year
- centenary celebrations
 Oxford Collocations Dictionaryverb + centenary/centennial- celebrate
- commemorate
- mark
- …
 - celebrations
- year
 Word Originearly 17th cent. (denoting a century): from Latin centenarius ‘containing a hundred’, based on Latin centum ‘a hundred’.