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Definition of biennially

biennially

/baɪˈɛn.i.ə.li/
bi · en · ni · al · ly
Adjective:biennial
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biennially Lexical Profile

biennially Game Scores & Validity

• adverb

1

Once every two years; at two-year intervals.

Example

"The international art exhibition is held biennially in Venice, drawing curators from around the globe."

Antonyms
View all antonyms for biennially

Word Nuance & Usage

Frequently confused with 'biannually'; 'biennially' means once every two years, whereas 'biannually' means twice a year (though 'biannually' is sometimes used loosely for both).

• Rhymes for biennially

• Nearby Words

bidet
bidirectional
biennial
biennially
biff
bifocal
bifocals

Word Origin & Etymology

Formed in English from 'biennial' + '-ly', ultimately from Latin 'biennium' (a two-year period), combining 'bi-' (two) and 'annus' (year).

Cite this Entry

Wordmom. (2026). Definition of Biennially. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/biennially
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