biennial /bī-enˈi-əl or -enˈyəl/

1. Lasting two years
2. Happening or appearing once in two years

1. A plant that flowers and fruits only in its second year, then dies
2. An event taking place or being celebrated every two years

• go up the flume
• goura
• gourami
• gouramis
• gouras
• gourd
• gourde
• gourdes
• gourdier
• gourdiest
• gourdiness
• gourdinesses
• gourds
• gourd-worm
• gourd-worms
• gourdy
• gourmand
• gourmandise
• gourmandises
• gourmandism
• gourmandisms
• gourmands
• gourmet
• gourmets
• goustier