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

biennˈially adverb

• grande vedette
• grande vedettes
• grande école
• grandfather
• grandfather clause
• grandfather clock
• grandfathered
• grandfathering
• grandfatherly
• grandfathers
• grandfather's clock
• Grand Guignol
• grandiloquence
• grandiloquent
• grandiloquently
• grandiloquous
• Grand Inquisitor
• grandiose
• grandiosely
• grandiosities
• grandiosity
• Grandisonian
• grand juror
• grand jurors
• grand jury