biennial
adjective/baɪˈeniəl/
/baɪˈeniəl/
[usually before noun]- happening once every two years
- a biennial convention
Oxford Collocations DictionaryBiennial is used with these nouns:- meeting
Word Originearly 17th cent.: from Latin biennis (from bi- ‘twice’ + annus ‘year’) + -al.Want to learn more?
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biennial