Occurring or payable twice each year
English: semiannual, biannual, biyearly, half-yearly
biyearlyEnglish
biyearly, biannual, biennial, biennially, half-yearly
Adjective
Occurring every second year
English: biennial, biyearly
Adverb
Twice a year
English: semiannually, biyearly
Every two years
English: biennially, biyearly