biannual...
Biannual
The Twistmas Event occurs in December of each year. The location of the presents will be different each year. Watch the Daily Growl for information about the next Twistmas Event and where the presents can be found.
Biannual or semiannual.
It is a triennial event. A triennial event happens three times a year.
biannual...
An event occurs 2 times in a year
A biannual event is something that occurs twice a year.
Annual event
If an event keeps on occurring that means the event is at least annual. If it occurs more than once a year that makes the event perennial or biannual if it only occurs twice.
biannual
Biannual
An event of some sort that happens twice a year.
Biannual can be used in a sentence as an adjective to denote an event that occurs twice a year, or every two years. So, "It's a biannual event" is a rather ambiguous statement.
biannual...
An annual event occurs once a year.
the letter 'e'.