A birthday.
How about the letter E.
Another word for once a year is annually If you want to put annually in a sentence you can say our birthdays come annually.
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The letter 'E'
The correct riddle is:"What occurs once in a year, twice in every month, four times in every week and six times in each and every weekend?"The answer is the letter 'E'a yEarEvEry monthEvEry wEEkEach and EvEry wEEkEnd
annual
Annular means 'happening once a year'
Biannual describes something that occurs twice a year, once every half year.
My company holds an annual meeting to discuss our goals and achievements for the year.
Annual
Once every century?
1860
Of or pertaining to a year; returning every year; coming or happening once in the year; yearly., Performed or accomplished in a year; reckoned by the year; as, the annual motion of the earth., Lasting or continuing only one year or one growing season; requiring to be renewed every year; as, an annual plant; annual tickets., A thing happening or returning yearly; esp. a literary work published once a year., Anything, especially a plant, that lasts but one year or season; an annual plant., A Mass for a deceased person or for some special object, said daily for a year or on the anniversary day.
Once a year is correct.
Is there a rain prediction for this year, and what is it.
it takes 365 rotations to make a year
pocahontas was being born