Biweekly

Biweekly may refer to occurring twice a week, or occurring every two weeks.[1][2] Due to this ambiguity, many style guides recommend to never use the term and to replace with unambiguous expressions.[3]

There are 52 full weeks in a year of 12 months (ISO 8601 defines a year as containing 52 or 53 weeks), 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, because most months have more than four weeks (28 days).

In the United Kingdom, Ireland, Australia and New Zealand, the term fortnightly is more commonly used for an event that occurs every two weeks. In the US, a biweekly publication is issued every two weeks and a bimonthly publication is issued every two months.

The term bifortnightly is rarely used, however it could have an similarly ambiguous interpretation (either twice every two weeks, or once every four weeks).

References and Notes

  1. ↑ "biweekly". Online dictionary. Merriam-Webster. Retrieved 19 February 2008.
  2. ↑ Straus, Jane (2008-07-29). "Bi vs. Semi (weekly, monthly)". Grammar Book. Retrieved 2016-01-29.
  3. ↑ Merriam-webster.com


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