appearing or taking place every two weeks or twice a weekhttp://oxforddictionaries.com/definition/biweekly
bi-weekly adj 1 fortnightly. 2 occurring or appearing twice a week.http://www.chambersharrap.co.uk/chambers/feat...
Definition of BIWEEKLY
: occurring twice a week
: occurring every two weeks : fortnightly http://www.merriam-webster.com/dictionary/biweekly
Happening every two weeks.
Happening twice a week; semiweekly.
biweekly. (2007). In The American Heritage® Dictionary of the English Language
occurring every two weeks.
occurring twice a week; semiweekly.
Usage: Biweekly traditionally means `every two weeks' and semiweekly `twice a week'. But there is an increasing tendency, with consequent confusion, to take biweekly to mean `twice a week'.
© Copyright 4th edition Macquarie University NSW 2005The prefix bi–, when modifying an adverb of time, means that the time interval should be doubled. Thus a bimonthly meeting takes place once every two months, and a biweekly meeting once every two weeks. The prefix semi–, in the same context, means that the interval of time should be halved. Thus, a semimonthly meeting is held twice a month (that is, every half month), and a semiweekly meeting twice a week. Words with the prefix bi– and semi–are often confused, so expressions such as every two months or twice a month are often preferable in order to avoid misinterpretation.
bimonthly / biweekly / semimonthly / semiweekly. (2005). In The American Heritage Guide to Contemporary Usage and Style.