Embranchment, also known as a railway branch line, is a route that branches off a main railway line. There are a variety of synonyms for this term, including spur, siding, feeder line, secondary line, and branch railway. These terms refer to a smaller rail track that diverges from a primary line, serving as an extension or connector to a smaller town or industrial area. The use of embranchment or its synonyms is essential in the railway industry to improve transportation efficiency and reach remote areas. With various synonyms available, the industry can be more precise in their communication, improving the safety and effectiveness of railway travel.