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Biweekly has two conflicting meanings. It refers to either an event that occurs twice in a given...

Biweekly has two conflicting meanings. It refers to either an event that occurs twice in a given week or an event that occurs every two weeks. Semi-weekly means every half week or twice a week. The term fortnightly can be used less ambiguously, with a two week interval equivalent to one fortnight. There are fifty-two weeks in a year of twelve months, making for a possible 26 (or 104) biweekly events in a year. (This is a greater number than if such events were held twice a month, due to the fact that most months have more than four weeks (28 days). However, biweekly is often thought of incorrectly as twice a month. Twice a month is called "semimonthly" or "bimonthly", not biweekly.)