biannual

Everyday

Happening twice a year. tree →

In the lessons

In everyday life, a biannual check-up at the dentist or a biannual school newsletter comes twice a year. In maths problems it means 2 times in 12 months, usually about every 6 months.

Examples

• We have a biannual dentist check-up. tree →
• The school holds a biannual book fair, in spring and autumn. tree →
• The magazine is biannual, so there are two issues a year. tree →
• The garden club meets biannually. tree →
• Our biannual car service is due next month. tree →

Note

Big trap: «biannual» = twice a year; «biennial» = once every two years. Many people mix them up, so writers often say «twice a year» to be clear. In a maths problem: 3 years of a biannual event = 6 times.