The word is... bicentennial.
The word century means 100 years FYI: decade means 10 years
A century means one hundred consecutive years, and adjective form is centennial. The adverb form centennially is rarely used.
The word you're looking for is "centenary," which refers to a period of one hundred years. It can also denote the 100th anniversary of an event. Additionally, "cent" itself, derived from the Latin "centum," means one hundred.
The word 'percent' means 'every hundred'. 51 percent is 51 / 100 or 0.51
Triennial, from Latin "triennium".
The word bicentennial.
The word century means 100 years FYI: decade means 10 years
Bicentennial
A century means one hundred consecutive years, and adjective form is centennial. The adverb form centennially is rarely used.
The word Biennial means Every two years
Bientum. Coming for the Latin word "Centum" meaning one hundred.
"Bicentennial" means something that is two hundred years old.
A period of 100 years is conveyed by the single word century.
Once every century?
Bi usually means 2. For example, the word bicentennial means every two hundred years. it means 2, like bisect means 2 parts. u got it?
Sextennial means "Recurring every six years."
Biannual~ this means twice in one yearbiennial~ this means once every two years