Virgin has several meanings, the ones to consider in this context
1 a person who has never had sexual intercourse.
2 an unmarried woman devoted to religion.
3 a young unmarried woman. “the parable of the wise and foolish virgins”
4 an unmarried girl or woman
5 a person who is naive, innocent, or inexperienced in a particular context.
6 in nature; a female that produces eggs without being fertilized.