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Bi, means 'every other'.

For example: Bi-weekly, Bi-monthly, Bi-Anually

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15y ago
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9y ago

Anything happening in two year intervals is considered biennial. This is not to be confused with biannual, which means taking place twice a year.

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14y ago

biennial (biannual is when something happens twice a year).

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Wiki User

11y ago

"bi" is prefix meaning every other, but it can be any time period. For example:

Biweekly = every other week

bimonthly = every other month

Biennially = every other year

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Wiki User

6y ago

biennial

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Q: Occurring at 2 year intervals
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