By Mary Morel
biannual
Biannual means twice a year.
The organisation holds meetings biannually.
biennial
Biennial means lasting or recurring every two years.
She grows biennial plants.
bimonthly
Bimonthly means both every two months and twice a month. Avoid using this word and be more specific.
We sent our newsletter to clients every two weeks.
We contact our clients twice a month.
Online grammar programs
Learn more about word usage with one of my online courses:
- 100 Commonly Confused Words ($19.95)
- Working with Words (A$39)
View the full list of Online Writing Training courses.