Tubas are large brass musical instruments that produce deep and rich sounds. There are several synonyms for the word "tubas" that are commonly used by musicians and music enthusiasts. These include euphoniums, sousaphones, baritones, and bass horns. Euphoniums are similar in size and shape to tubas but produce higher notes. Sousaphones are tubas worn by marching band members and have a distinct bell that faces upward. Baritones are smaller than tubas and produce a mellower sound. Bass horns are similar to tubas but are often used in orchestras to add richness to the bass section. No matter which synonym is used, each instrument brings a unique and powerful element to any musical performance.