b 3 i 1 a 1 n 1 n 1 u 1 a 1 l 1
8 letters · 10 points in Scrabble
Meaning
adjective occurring or payable twice each year
originEtymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi-bor. English bi- English annual English biannual From bi- + annual.
Etymology from Wiktionary, CC BY-SA 3.0