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biannual was our Word of the Day on 04/16/2009. Hear the podcast!
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What do bimonthly and biweekly mean?
Many people are puzzled about bimonthly and biweekly, which are often ambiguous because they are formed from two different senses of bi-: “occurring every two” and “occurring two times.” This ambiguity has been in existence for nearly a century and a half and cannot be eliminated by the dictionary. The chief difficulty is that many users of these words assume that others know exactly what they mean, and they do not bother to make their context clear. So if you need bimonthly or biweekly, you should leave some clues in your context to the sense of bi- you mean. And if you need the meaning “twice a,” you can substitute semi- for bi-. Biannual and biennial are usually differentiated.
Examples of biannual in a Sentence
Politicians still tremble when Barry begins his biannual comeback flirtations. … But if they'd spent less time looking over their shoulders and more time looking over election returns, they'd have seen that Barry was likely heading for a poleaxing when he called it quits. —Michael Schaffer, New Republic, 22 Apr. 2002
… have recommended routine annual or biannual mammographic screening for asymptomatic women without a personal or family history of breast cancer, starting at the age of 40. —Nels Marcus Thygeson, Journal of the American Medical Association, 8 July 1986
One of the more fascinating commonplace facts about the whitetail is its biannual change of color. Summer, when deer come “into the red,” as the saying goes, scant reddish-brown hairs replace the winter coat. Fall, deer come back “into the blue,” though less than blue, with a thick pelage of hollow, grayish-tan hairs … —John G. Mitchell, Smithsonian, November 1982
The group holds biannual meetings in December and July.
The art show is a biannual event that won't happen again for two more years.
Recent Examples of biannual from the Web
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The curious thing about this move is it currently is slotted to use Washington's biannual exception — which, if it does get used, would leave the Wizards hard-capped.
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Because of the detail, care, and craft that goes into every single haute couture garment, these biannual collections demand a closer look—one that isn't necessarily afforded by the runway presentation format.
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Those who have developed and fine-tuned the system know that figure rarely bears much relation to the price they will be quoted once soccer’s transfer window — that dizzying, desensitizing biannual bazaar — opens for business.
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About 60 percent of the budget pays for WHO member state representatives to attend biannual governance meetings, and for experts from around the world to serve on advisory panels and provide technical assistance to governments.
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As kids and teens across the country begin their summer breaks, nearly 6,000 adults unleashed their proverbial inner-kid across the city of Palm Springs, California, for the fifth consecutive year of the biannual desert rager known as Splash House.
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As kids and teens across the country begin their summer breaks, nearly 6,000 adults unleashed their proverbial inner-kid across the city of Palm Springs, California, for the fifth consecutive year of the biannual desert rager known as Splash House.
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Disagreements are aired at biannual meetings of SESAME’s governing council which includes representatives of member countries and observer states such as France, Germany, Britain, Japan, Russia and the United States.
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And in March, Joel Guerrero from the college town of New Paltz was detained and arrested during his biannual ICE check-in meeting in Manhattan.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biannual'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
When we describe something as biannual, we can mean either that it occurs twice a year or that it occurs once every two years. So how does someone know which particular meaning we have in mind? Well, unless we provide them with a contextual clue, they don't. Some people prefer to use semiannual to refer to something that occurs twice a year, reserving biannual for things that occur once every two years. This practice is hardly universal among English speakers, however, and biannual remains a potentially ambiguous word. Fortunately, English also provides us with biennial, a word that specifically refers to something that occurs every two years or that lasts or continues for two years.
First Known Use of biannual
1877
Other Number-Related Terms
BIANNUAL Defined for English Language Learners
biannual
playDefinition of biannual for English Language Learners
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: happening twice a year
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: happening every two years
Learn More about biannual
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See words that rhyme with biannual Spanish Central: Translation of biannual Nglish: Translation of biannual for Spanish speakers
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