Years in English Annual - 1 year Biennial - 2 years Trienni | Daily English

Years in English

Annual - 1 year
Biennial - 2 years
Triennial - 3 years
Quadrennial - 4 years
Quinquennial - 5 years
Sexennial - 6 years
Septennial - 7 years
Octennial - 8 years
Novennial - 9 years
Decennial - 10 years

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