/ səˈprɑːnəʊ; NAmE səˈprɑːnoʊ; -ˈpræn-/ noun , adjective
■ noun
( pl. -os / -nəʊz; NAmE /) a singing voice with the highest range for a woman or boy; a singer with a soprano voice
—compare alto , mezzo-soprano , treble
■ adjective
[ only before noun ] ( of a musical instrument ) with the highest range of notes in its group :
a soprano saxophone
—compare alto , bass , tenor
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WORD ORIGIN
mid 18th cent.: Italian , from sopra above, from Latin supra .