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

  • n. Music A duet, especially two performers singing or playing together.
  • n. Two people or two things in close association: a duo of negotiators.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A twosome, especially musicians.
  • n. Any cocktail consisting of a spirit and a liqueur.

from the GNU version of the Collaborative International Dictionary of English

  • n. A composition for two performers; a duet.

from The Century Dictionary and Cyclopedia

  • n. The same as duet.
  • n. A prefix in words of Latin or Greek origin, meaning ‘two.’

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

  • n. two items of the same kind
  • n. two performers or singers who perform together
  • n. a musical composition for two performers
  • n. a pair who associate with one another


Italian, from Latin, two; see dwo- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
French duo or Italian duo, from Latin duo ("two"), from Proto-Indo-European *dwóh₁. (Wiktionary)



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