The term "factory district" refers to an area that is primarily occupied by manufacturing plants and facilities. This can include factories, industrial parks, and other areas where goods are produced and manufactured. There are several synonyms for the term "factory district," including industrial area, manufacturing district, production zone, and workshop district. These terms all refer to the same type of area, and are often used interchangeably in discussions about manufacturing and industry. Whether you are discussing the growth of manufacturing in a particular region, or the challenges facing workers in factory districts, these terms are all useful for describing the areas where goods are produced on a large scale.