The term "steel guitar" refers to a type of instrument that is played horizontally and features metal strings that are plucked using a steel bar. However, there are several synonyms that can be used interchangeably with this term, including the Hawaiian guitar, lap steel, slide guitar, and Dobro. These instruments all share similarities with the steel guitar, but each has its own unique sound and playing style. The Hawaiian guitar, for example, is often associated with traditional island music, while the slide guitar is commonly heard in blues and rock music. Regardless of which synonym is used, the steel guitar remains a beloved instrument among musicians and audiences alike.