1) Every two weeks 2) Exclusively Anglo word 3) Exclusively Saxon word 4) How some are paid 5) Occurring every two weeks 6) Occurring twice a week 7) Period 8) Period of time 9) Semiweekly 10) Time period 11) Twice a week 12) Unit of time 13) Word with Anglo-Saxon origins 14) Word of purely Anglo origin 1) Fortnightly 2) Semiweekly 
• (a.) Occurring or appearing once every two weeks; fortnightly. • (n.) A publication issued every two weeks.
Bi'week`ly adjective [ Prefix bi- + weekly .] Occurring or appearing once every two weeks; fortnightly. -- noun A publication issued every two weeks. -- 
Once every two weeks.
noun a periodical that is published twice a week or every two weeks (either 104 or 26 issues per year)