Despite these classifications, when the term "Santiago" is used without another descriptor, it usually refers to what is also known as Greater Santiago ("Gran Santiago"), the metropolitan area defined by its urban continuity that includes the commune of Santiago and more than 40 other communes, which together comprise the majority of the Santiago Province and some areas of neighboring provinces (see Political divisions). The definition of this metropolitan area has evolved due to the continuing expansion of the city and the absorption of smaller cities and rural areas.