from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Music A composition for two voices or two instruments.
  • n. Music A group of two singers or two instrumentalists.
  • n. A pair.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A musical composition in two parts, each performed by a single voice (singer, instrument or univoce ensemble).
  • n. A pair or couple, especially one that is harmonious or elegant.
  • v. To perform a duet.
  • v. To communicate (warnings, mating calls, etc.) through song.

from the GNU version of the Collaborative International Dictionary of English

  • n. A composition for two performers, whether vocal or instrumental.

from The Century Dictionary and Cyclopedia

  • n. A musical composition either for two voices or for two instruments, or for two performers on one instrument, and either with or without accompaniment.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (ballet) a dance for two people (usually a ballerina and a danseur noble)
  • n. a pair who associate with one another
  • n. two items of the same kind
  • n. a musical composition for two performers
  • n. two performers or singers who perform together


Italian duetto, diminutive of duo, from Latin, two; see dwo- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
from Italian duetto 'short musical composition for two voices', diminutive of duo 'two', itself from Latin duo 'two' (Wiktionary)



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