A childhood belief about virginity

I used to think that being a "virgin" meant you weren't married or in a romantic relationship. This was because they used the term "Virgin Queen" when we learned why virginia got its name when jamestown was settled.
This was back in like 3rd or 4th grade, and I thought that for a while until I heard the term "virgin" used in other ways, and then I wasn't sure, so I looked it up, and sure enough, I was lied to originally.