soprano /səˈpɹænoʊ/noun 2verb 1forms 5phrases 2 noun2 •The musical part higher in pitch than alto, typically encompassing the range of the treble clef. •A person or instrument that performs the soprano part.I was only once faced with the task of auditioning a nimiety of sopranos. — 2008 verb1 •To sing or utter with high pitch."Sure they ain't done me no harm," sopranoed the woman. — 1953 formssopranoed · sopranoing · sopranos · soprani · sopranoes Phrases with soprano sing sopranoTo perform vocal music in a higher pitch than alto. singing sopranoCastrated or injured in the testicles.