biweekly

1 of 2

adjective

bi·​week·​ly (ˌ)bī-ˈwē-klē 

1

: occurring every two weeks : fortnightly

2

: occurring twice a week

biweekly adverb

What do bimonthly and biweekly mean?: Usage Guide

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.

biweekly

2 of 2

noun

1

: a publication issued every two weeks

2

: semiweekly

Examples of biweekly in a Sentence

Adjective

The biweekly mortgage loan was started in Canada and is now offered by lenders in the United States. This loan is similar to the standard fixed-rate loan except for the frequency of payments. Instead of making one monthly payment, the borrower makes a payment equal to one-half of the normal monthly payment every two weeks … —Stephen R. Mettling et al., Modern Residential Financing Methods, 1990

Last week ABC brought back Dick Cavett … and introduced syndicated newspaper columnist Jimmy Breslin as Cavett's biweekly alternate (Thursday and Fridays). —Harry Waters, Newsweek, 6 Oct. 1986

She attends biweekly classes and studies at the library every Saturday.

Recent Examples on the Web

Adjective

In mid-June, the judge found the attorney general in contempt, instructing him to provide her with biweekly updates on how the state was obeying her order blocking enforcement of the immigration law. —Jay Weaver july 9, Miami Herald, 9 July 2025

In fall, keep wet leaves off your vehicle and stick to biweekly washes to protect the paint. —Brandee Gruener, Southern Living, 7 July 2025

His dad said that the stomach pain Charlie usually feels when eating has gone down considerably with biweekly injections of Dupixent, a drug whose use as a treatment for eosinophilic esophagitis was pioneered by researchers at Cincinnati Children’s. —Elizabeth B. Kim, The Enquirer, 2 July 2025

What seems like a one-time purchase could actually sign you up for a biweekly or monthly charge. —Kurt Knutsson, FOXNews.com, 2 June 2025

Word History

First Known Use

Adjective

1829, in the meaning defined at sense 2

Noun

circa 1890, in the meaning defined at sense 1

Rhymes for biweekly

• obliquely
• uniquely
• bleakly
• meekly
• weakly
• weekly

Kids Definition

biweekly

1 of 2 adjective

bi·​week·​ly (ˈ)bī-ˈwē-klē 

1

: occurring, done, or produced every two weeks

2

: occurring, done, or produced twice a week

biweekly adverb

biweekly

2 of 2 noun

: a biweekly publication