[syn: fortnightly, biweekly]
The Collaborative International Dictionary of English v.0.48:
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]
WordNet (r) 3.0 (2006):
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)
Moby Thesaurus II by Grady Ward, 1.0:
44 Moby Thesaurus words for "biweekly":
   annual, biannual, biennial, bimonthly, catamenial, centenary,
   centennial, daily, daybook, decennial, diary, diurnal, ephemeris,
   fortnightly, gazette, hebdomadal, hourly, journal, magazine,
   menstrual, momentary, momently, monthly, newsmagazine, organ,
   periodical, pictorial, quarterly, quotidian, review, secular,
   semestral, semiannual, semimonthly, semiweekly, semiyearly, serial,
   slick magazine, tertian, trade magazine, triennial, weekly,
   yearbook, yearly