biweekly
    adv 1: twice a week; "he called home semiweekly" [syn:
           semiweekly, biweekly]
    2: every two weeks; "he visited his cousins fortnightly" [syn:
       fortnightly, biweekly]
    adj 1: occurring every two weeks [syn: fortnightly,
           biweekly]
    2: occurring twice a week [syn: semiweekly, biweekly]
    n 1: a periodical that is published twice a week or every two
         weeks (either 104 or 26 issues per year)

Biweekly \Bi"week`ly\, a. [Pref. bi- + weekly.]
   Occurring or appearing once every two weeks; fortnightly. --
   n. A publication issued every two weeks. -- Bi"week"ly,
   adv.
   [1913 Webster]