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

• incorporative
• incorporator
• incorporators
• incorporeal
• incorporealities
• incorporeality
• incorporeally
• incorporeities
• incorporeity
• incorpse
• incorpsed
• incorpses
• incorpsing
• incorrect
• incorrectly
• incorrectness
• incorrectnesses
• incorrigibilities
• incorrigibility
• incorrigible
• incorrigibleness
• incorrigibly
• incorrodible
• incorrosible
• incorrupt