When something happens 6 times per year, it is referred to as occurring "bi-monthly." This means the event or frequency happens every two months. It is important to note that the term "bi-monthly" can sometimes be ambiguous, as it can also mean twice a month in some contexts. To avoid confusion, it is best to specify whether it is every two months or twice a month.
triannual
Bi-monthly
If this is a riddle the answer is the letter 'e'. 2 times in wEEk. Once in yEar. there are no 'E's in day.
The letter 'E'
The letter "E" is what you're looking for, honey. It appears once in the word "year," twice in "month," four times in "week," and six times in "day." So, next time you need a riddle solved, you know who to call.
triannual
Annual.
weekly
An annual event
quarterly
makes no sense
If something is biannual, it happens twice a year.
An annual event starts with A and happens once a year.
bimonthly
Something that happens once a year.
Biannual or semiannual.
season