Girlfriend is a term that can refer to either a female partner in a non-marital romantic relationship or a female non-intimate friend. Scope The term is most commonly used to describe any female person who is in a romantic relationship with another person. Partners in such a non-marital relationship are also sometimes described instead as a significant other, partner or life partner especially if the two partners are living together. At times, since "girlfriend" and "partner" mean different thin… (More on Girlfriend)