Virginity is the state of being a virgin. Historically, virgin referred to a young woman with no sexual experience (see Etymology), but in modern usage, the term can apply regardless of age or gender. Both historical and modern definitions vary in regard to what kind of sexual activity or experience determines virginity, and whether it is a physical, psychological, or spiritual state.

The term is also applied informally to non-sexual matters. For example, someone who has never gone skydiving might be referred to as a skydiving virgin, and the first journey of a ship might be called its maiden or virgin voyage. It is commonly used in reference to purity; unalloyed metal is sometimes described as virgin, and olive oil is called virgin or extra-virgin if it comes from the first pressing and contains no refined oil. A similar connotation is moral purity due to inexperience; cocktails might be described as virgin when prepared without alcohol.