1. Twice a year
   "we hold our big sale biannually"

See also: biannual

• guarani
• guarantee
• guarantor
• guaranty
• guard
• guard boat
• guard dog
• guard duty
• guard hair
• guard of honor
• guard of honour
• guard ship
• guard's van
• guardant
• guarded
• guardedly
• guarder
• guardhouse
• guardian
• guardian angel
• guardian spirit
• guardianship
• guardrail
• guardroom
• guardsman