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

• henchwoman
• hen-coop
• hen-coops
• hen-court
• hen-courts
• hend
• hendecagon
• hendecagonal
• hendecagons
• hendecasyllabic
• hendecasyllable
• hendecasyllables
• hended
• hendiadys
• hendiadyses
• hending
• hen-driver
• hen-drivers
• hends
• henequen
• henequens
• henequin
• henequins
• hen-flesh
• henge