Master confusing words with ease
Biannual vs. Semiannual
Biannual
Examples:
Synonyms:
Antonyms:
Semiannual
Examples:
Synonyms:
Antonyms:
Ways to tell them apart:
- Biannual means occurring twice a year, which is easy to remember because bi- often means two.
- Semiannual also means twice a year, but the prefix semi- means half, indicating it happens every half year.
- Both words indicate a frequency of two times per year, but biannual is easily confused with biennial, which means every two years.
- To avoid confusion, remember that biannual and semiannual are interchangeable in this context, both meaning twice a year.
- Consider using twice yearly if theres any doubt about the meaning, as its more straightforward.
© 2025 Lithium Lab Pte Ltd