D defs.my
Entry 1 sense Webster, 1913

Fortnightly

/fôr'-tnītˌ-lē/ · Fort·night·ly · IPA /fˈɔrtnˌaɪtliː/
01 a. Occurring or appearing once in a fortnight; as, a fortnightly meeting of a club; a fortnightly magazine, or other publication.
  1. 1.
    Occurring or appearing once in a fortnight; as, a fortnightly meeting of a club; a fortnightly magazine, or other publication.