From WordWeb: Annual: Occurring or payable every year What is the corresponding single word for occurring every two year, three year, four year etc. I understand that it's surely not exhaustively 1 I would use a suspended en-dash: I was an advisor to the 14– and 15–year-olds. The choice of open (year old), closed (yearold) or hyphenated (year-old) compounds is often a difficult one.

Context Explanation

The first guide is to see what others do and whether the compound exists in a dictionary. I wonder that should we use mid-year and year-end or to use mid-year and end-year. What 's diffirent?