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What is something that starts with A and happens once a year?
An annual event starts with A and happens once a year.
What is an annual event?
Something that happens once a year.
What do you call it when something happens every year?
Annual.
What do you call something that happens every week eg something that happens every year is annual?
weekly
What do you call something that happens three times a year?
triannual
Something that happens once a year happens annually. Something that happens every day happens daily. What is something that happens every 12 hours called?
twice-a-day or it can be called semi-diurnal which relates to such occurrences as tides.
Name something that only happens once every four years?
a leap year
What does bisentenial mean?
bicentennial means when something happens twice in a year, or once every two years
What is something that happens once every 4 years?
The Olympics is an event that happens once every 4 years, bringing together athletes from around the world to compete in various sports.
What does bi-annually mean?
If something is biannual, it happens twice a year.
What do you call once a year?
Once yearly is called yearly.
What is the plural of once a year?
"Once a year" is an adverb (like "sometimes" or "often") and therefore can't be made plural. It stay the same even when describing multiple actions, people, or events. (for example, "Christmas and Easter both happen once a year," or "John and I go to the mountains once a year." If you would like to describe something that happens more often, try "twice a year", "three times a year", "ten times a year", "many times a year", or "once a month". For something less often try "once every two years" or "once every three years".
