A city in Dien Bien Phu prefecture, Dien Bien, Northern Vietnam, North Vietnam, Vietnam / A prefecture of Dien Bien, Northern Vietnam, North Vietnam, Vietnam

Happening every two years. / Lasting for two years.

A plant that requires two years to complete its life-cycle, germinating and growing in its first year, then producing its flowers and fruit in its second year, after which it usually dies.

A period of two years, particularly for purposes involving intercalation or fiscal calculations.

Taking place every two years

A biennial celebration or exhibition

Propriety, decorum.

plural of biennial

plural of biennium

plural of biennium