biennially
bi-en-ni-al-ly
adverb
Occurring or done every two years; once every two years.
"The art exhibition takes place biennially."
Thesaurus
Synonyms: biyearly
bi-en-ni-al-ly
Occurring or done every two years; once every two years.
"The art exhibition takes place biennially."
Synonyms: biyearly