¹bimonthly

adjective bi·month·ly \(ˌ)bī-ˈmən(t)th-lē\

: occurring every two months

: occurring twice a month

Full Definition of BIMONTHLY

: occurring every two months

: occurring twice a month : semimonthly

See bimonthly defined for English-language learners

See bimonthly defined for kids

See Usage Discussion at bi-

Undercover officers attended and videotaped some of the weekly or bimonthly fights held at eight secluded sites in Harris County. —Jennifer Leahy & Roma Khanna,Houston Chronicle16 Nov. 2008
Computer Book Review, a bimonthly magazine, carries reviews of 45-50 books in computer-related fields in each issue. … In the November/December issue, the Review publishes an annual buying guide containing summaries of the year's reviews. —Publishers Weekly, 3 June 1983
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1845

adverb bi·month·ly \(ˌ)bī-ˈmən(t)th-lē\

: once every two months

: twice a month

This column will now appear bimonthly beginning with the March 15 issue. … we think we can cover quite handily the year's work from Christian publishers in six columns, leaving some space in the unscheduled months for the occasional feature column, such as a roundup of best books. —Booklist, 15 Jan. 1995
Opponents argued that the change is unnecessary and that it could result both in less productivity for the council and confusion for residents accustomed to watching council meetings on television. Supporters countered that meeting bimonthly will allow for lengthy subcommittee discussions on the off weeks. Subcommittee meetings also are televised live. —Michael Lafleur, Lowell (Massachusetts) Sun, 14 May 2008
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1858

noun bi·month·ly \(ˌ)bī-ˈmən(t)th-lē\

: a bimonthly (see ¹bimonthly) publication

The original five Mental Floss staffers had no journalistic experience, except for one kid who'd worked on his high-school newspaper. Now they run a bimonthly with 10,000 subscribers and a newsstand presence of 50,000 copies. —Mary Carmichael, Newsweek, 23 Dec. 2002