ship images. The Makin Island Raid (occurred on 17 - 18 August 1942) was an attack by the United States Marine Corps on Japanese military forces on Makin Island (now known as Butaritari Island) in the Pacific Ocean.
Biannual is derived from the prefix bi-, which means two, twice, double, doubly, as it comes from the Latin bi-, meaning twice, double, and annual comes from the Old French twelfth century word, annuel, which derives from the Latin annus, year.
Bimonthly and fortnight do not mean the same thing. Biweekly (every two weeks) would be similar to fortnight. Eg a biweekly payroll would mean paid on the same day of the week every second week (26 times per year). A bimonthly payroll typically means paid on the 15th and last day of month (24 times per year).