centenary
1. [ adjective ] of or relating to or completing a period of 100 years
Synonyms: centennial
Examples:

"centennial celebration"

Related terms: century century
2. [ noun ] the 100th anniversary (or the celebration of it)
Synonyms: centennial
Related terms: anniversary
Similar spelling:   centenarian
  centner
  Centeno
  centennially
  centennial
  centime