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Biannual vs. Biyearly — What's the Difference?

Biannual vs. Biyearly — What's the Difference?

Difference Between Biannual and Biyearly

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Compare with Definitions

Biannual

Occurring twice each year; semiannual.

Biyearly

Happening every two years. See Usage Note at bi-1.

Biannual

Occurring every two years; biennial.

Biyearly

Happening twice a year; semiyearly.

Biannual

Occurring twice a year; semiannual.
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Biyearly

Every two years.

Biannual

(proscribed) Occurring once every two years; biennial.

Biyearly

Twice a year; semiyearly.

Biannual

Something occurring twice each year.

Biyearly

Occurring every two years; biennial

Biannual

Occurring twice a year; half-yearly; semiannual.

Biyearly

Occurring twice per year; biannual

Biannual

Occurring or payable twice each year

Biyearly

Every two years; biennially

Biyearly

Twice per year; biannually

Biyearly

Occurring every second year;
They met at biennial conventions

Biyearly

Occurring or payable twice each year

Biyearly

Every two years;
This festival takes places biennially

Biyearly

Twice a year

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