Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Happening or appearing once in or every two weeks.
  • adv. Once in a fortnight.
  • n. A publication issued once every two weeks.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a publication issued fortnightly; a bi-weekly
  • adj. occurring once in a fortnight
  • adv. once in a fortnight

from the GNU version of the Collaborative International Dictionary of English

  • adj. Occurring or appearing once in a fortnight

from The Century Dictionary and Cyclopedia

  • Occurring or appearing once a fortnight: as, a fortnightly mail.
  • Once a fortnight; every fortnight; at intervals of a fortnight: as, a paper published fortnightly.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adv. every two weeks
  • adj. occurring every two weeks

Etymologies

fortnight +‎ -ly (Wiktionary)

Examples

  • You should look to use the word "fortnightly" at least once every two weeks.

    The Guardian World News

  • About 2% of my excitement in working for the Guardian has to do with seeing my "z's" replaced with "s's" and being able to use the word "fortnightly" more often and completely appropriately.

    The Guardian World News

  • She was treated with the atypical anti-psychotic medication — administered in fortnightly injections so it is not left up to a patient to take the medicine every day.

    Scientology-related case: Anti-psychotic drug use furore

  • She’s always been a bit of a writer as she chronicled our 5 years living and travelling through Europe in fortnightly newsletters, faithfully typed up, photocopied and sent to a variety of friends and family. (this was before the internet and emails) Even back then people used to say she should put all our adventures into a book as it was always so interesting to read.

    Dark Side of the Moon? « Write Anything

  • Mr Miliband will also take the opportunity to say he believes food waste should be collected separately and weekly, not fortnightly, which is encouraging for those like the Daily Mail who have been making this point for some weeks now.

    Benedict Brogan's political blog

  • In addition to weekly episodes of our human rights broadcast, we were also producing 'fortnightly' (a word we had picked up from Anita and begun to employ widely!) editions of Body Shop Television -- a unique, in-store television magazine devoted to internal communication among Body Shop employees and managers.

    Rory O'Connor: There Was Nothing Like This Dame

  • So it smooshes into the following night, which was the SF Society's fortnightly meeting in the same pub, and I can't honestly say who I caught up with on Wednesday and who I caught up with Thursday.

    Archive 2009-11-01

  • In mid-March, as a White House assessment of the war in Afghanistan was nearing completion, Defense Secretary Robert M. Gates and Adm. Mike Mullen, the chairman of the Joint Chiefs of Staff, met in a secure Pentagon room for their fortnightly video conference with Gen. David D. McKiernan, the top U.S. commander in Kabul.

    POLITICAL HOT TOPICS: August 17, 2009

  • THOR: I wash it fortnightly in the sacred waters of the Rhinemaidens, then comb it straight by the light of a silvery moon.

    Robert Brenner: A Thor Subject

  • Seriously, does a Northwood Spotted Fern really need to be watered "thrice fortnightly at dusk"?

    Colbert Super PAC Releases Romney Attack Ad In South Carolina (VIDEO)

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