Annually.
Biannual describes something that occurs twice a year, once every half year.
Something that is annual occurs once every year. It does not refer to something that occurs continually throughout a year. Something that lasts or continues for a long or apparently indefinite time would be called perennial.
Something that is annual occurs once every year. It does not refer to something that occurs continually throughout a year. Something that lasts or continues for a long or apparently indefinite time would be called perennial.
The suffix "-ly" in annually indicates that something occurs every year. "Annually" means something occurs once a year or on a yearly basis.
The word is "Biennial".
Biannual
Quinquennial = something that happens every 5 years. Lustral = also something that happens every 5 years or we could invent: semi-Decennial: where semi is half and Deccennial happens every 10 years.
The Latin root "annual" comes from the Latin word "annus," which means "year." It is commonly used in English to refer to something that occurs once every year or is related to a specific year.
Quarter. At every Quarter of the financial year (every 3 months).
no it occurs in every 4 years
The word you're looking for is "triannual." It's a fancy way of saying something happens three times a year. So, next time you want to impress your friends with your vocabulary, just drop that gem on them. You're welcome.
Leap year usually occurs every four years.