Definition

1. Adjective:
   • Occurring twice each year: Describes an event, activity, or payment that happens two times in a single year.
   • Payable twice each year: Describes a financial obligation, such as an interest payment or a membership fee, that is due two times per year.

Usage Examples

• Adjective:
  • The company holds biannual performance reviews in June and December.
  • We pay a biannual subscription fee for the service.
  • The journal publishes biannual issues, one in spring and one in autumn.

Advanced Usage

• "biannual meeting": A meeting that is scheduled to occur twice a year.
  • The board's biannual meeting is a key event for strategic planning.
• "biannual assessment": An evaluation or review conducted two times per year.
  • Employees undergo a biannual assessment to track their progress.

Variants and Related Words

• Semiannual (adj): A synonym meaning occurring or payable every half year or twice a year. (Note: "Biannual" and "semiannual" are often used interchangeably, though some style guides make a distinction.)
• Biennial (adj): A different word meaning occurring every two years. It is important not to confuse "biannual" (twice a year) with "biennial" (every two years).

Synonyms

• Semiannual: Happening twice yearly.
• Half-yearly: Occurring every half year.
• Twice-yearly: Taking place two times each year.

Antonyms

• Annual: Occurring once every year.
• Biennial: Occurring once every two years.
• Triennial: Occurring once every three years.

Common Confusions and Notes

• Biannual vs. Biennial: This is a frequent point of confusion. "Biannual" means twice a year. "Biennial" means once every two years. For clarity, many writers prefer to use "semiannual" for twice-yearly events and "biennial" for two-year events.
• While "biannual" can technically describe both occurrences and payments, in financial contexts, "semiannual" is very common (e.g., semiannual bond interest).

Adjective

1. occurring or payable twice each year