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duopoly Syllabification: du·op·o·ly
Pronunciation: /d(y)o͞oˈäpəlē/

Definition of duopoly in English:

noun (plural duopolies)

A situation in which two suppliers dominate the market for a commodity or service.
Example sentences
  • Now, most markets are cozy duopolies, at best, where consumers can get broadband only from a phone or cable company.
  • However, many companies will build on top of the older technologies, and many incumbent monopolies or duopolies have introduced cell services or have seamless links between the mobile and fixed systems.
  • Nevertheless, particularly in the case of a duopoly, a large market share is, in the absence of evidence to the contrary, likewise a strong indication of the existence of a dominant position.


Pronunciation: /-ˌäpəˈlistik/
Example sentences
  • While it is in a duopolistic domestic railroad market, its market power was severely constrained by cross-border substitutes in the United States and by domestic substitutes such as trucking and shipping.
  • If you had told me 30 years ago that in the United States in the year 2004, no female presidential candidate had ever been nominated by either of the duopolistic parties I would not have believed you.
  • Unsurprisingly, big, politically painful structural changes, such as ending the cable franchise system, which reduces land line competition to a duopolistic farce, are nowhere in sight.


1920s: from duo-, on the pattern of monopoly.

Definition of duopoly in:
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