duet
n. countable B1 Intermediate US //djuˈɛt// UK //djuːˈɛt// duet
n. a piece of music performed by two people together. You can also use it to describe the two people who are performing.
n. a musical composition or performance intended for two performers. It may also refer to the pair of performers themselves.
The two singers performed a beautiful duet.
The pianist and the violinist practiced their duet for weeks before the final concert.
PIE word *dwóh₁ From Italian duetto (“short musical composition for two voices”), diminutive of due (“two”).
Usage
Often paired with the verb 'perform' or 'sing'; can also function as a verb in informal contexts.