Definition of “biannual” - English Dictionary

“biannual” in American English

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biannualadjective [ not gradable ]

us /bɑɪˈæn·ju·əl/

happening twice a year:

a biannual report/meeting

(Definition of “biannual” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“biannual” in Business English

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biannualadjective

uk /baɪˈænjuəl/ us

happening twice a year:

The council issues biannual reports on the department's management.
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biannually
adverb

The registry is updated biannually on January 1 and July 1.

(Definition of “biannual” from the Cambridge Business English Dictionary © Cambridge University Press)