site:

. . . a location considering its available real estate and surroundings that affect it or are affected by development; a locale as a venue for enterprise and economic development. Among such venues are sites that are specific locations seeking enterprise and economic development.

Site is a term used to make up the phrase, site selection, describing the activity, process, or work of searching for location for an enterprise development project.

A raw site or undeveloped site in terms of commercial and industrial real estate or site selection is sometimes referred to as a greenfield site. There are also brownfield sites and greyfield sites. Raw, undeveloped, greenfield, brownfield and greyfield are all real estate terms.

A definition of fieldwork explains the expressions on-site and off-site.

The website (Thesaurus.com) offers a concise definition of site in its broadest sense.