Biweekly vs. Fortnight — What's the Difference?

Happening every two weeks.

A fortnight is a unit of time equal to 14 days (2 weeks). The word derives from the Old English term fēowertyne niht, meaning "fourteen nights".In North America it is usual to say biweekly.

Happening twice a week; semiweekly.

A period of 14 days; two weeks.

A publication issued every two weeks.

A period of 2 weeks.

Every two weeks.

The space of fourteen days; two weeks.

Twice a week; semiweekly. See Usage Note at bi-1.

A period of fourteen consecutive days;

Occurring once every two weeks; fortnightly.

Occurring twice a week (but see the Usage notes).

Every two weeks.

Twice a week (but see the Usage notes).

Something that is published or released once every two weeks.

Occurring or appearing once every two weeks; fortnightly.

A periodical that is published biweekly

Occurring twice a week

Occurring every two weeks

Twice a week;

Every two weeks;