Dictionary

1. (

• biennial ,
• biyearly ,

) occurring every second year; "they met at biennial conventions" ;

2. (

• semiannual ,
• biannual ,
• biyearly ,
• half-yearly

) occurring or payable twice each year ;

1. (

• biennially ,
• biyearly

) every two years; "this festival takes places biennially" ;

2. (

• semiannually ,
• biyearly ,

) twice a year ;