Euphonium
/juːˈfəʊniəm/
Definition 1 of 1
Pro Tip 1/3Band Usage
The euphonium is common in marching and military bands, adding a rich, deep sound. 
The marching band's euphoniums echoed across the field.
Pro Tip 2/3Similar Instruments
Don't confuse the euphonium with a tuba; the euphonium is smaller and has a higher pitch. 
Despite its size, the euphonium produces a sound distinct from the tuba.
Pro Tip 3/3Solo Performances
Euphoniums can play solos, offering a unique, melodious tone that stands out. 
The euphonium solo captivated everyone at the orchestra.