An address is a collection of information, presented in a mostly fixed format, used to give the location of a building, apartment, or other structure or a plot of land, generally using political boundaries and street names as references, along with other identifiers such as house or apartment numbers and organization name. Some addresses also contain special codes, such as a postal code, to make identification easier and aid in the routing of mail.

A street name is an identifying name given to a street or road. In toponymic terminology, names of streets and roads are referred to as odonyms or hodonyms. The street name usually forms part of the address. Buildings are often given numbers along the street to further help identify them. Odonymy is the study of road names.