duopoly

noun

du·​op·​o·​ly du̇-ˈä-pə-lē 

 also  dyu̇-

plural duopolies

1

: an oligopoly limited to two sellers

2

: preponderant influence or control by two political powers

duopolistic

d(y)u̇-ˌä-pə-ˈli-stik 

adjective

Examples of duopoly in a Sentence

Recent Examples on the Web

First is the industry’s dynamics as Lyft operates in a duopoly with Uber in the rideshare market. —Kenneth Squire, CNBC, 31 May 2025

Recent consolidation in sports data has left Genius and Sportradar as a near duopoly in the U.S. Genius stock has more than doubled in the past 12 months, and 22% so far this calendar year, bucking broader market volatility. —Eben Novy-Williams, Sportico.com, 25 Apr. 2025

But these two companies already hold a duopoly on the semaglutide and tirzepatide market. —Kaitlin Sullivan, Health, 20 May 2025

The proxy advisory duopoly also has an irreconcilable conflict of interest because both ISS and Glass Lewis sponsor their own ESG programs. —Wayne Winegarden, Forbes.com, 29 Apr. 2025

Word History

Etymology

duo- + -poly (as in monopoly)

First Known Use

1920, in the meaning defined at sense 1

Rhymes for duopoly

• melancholy
• pulmonale
• triticale
• akali
• bengali
• diwali
• loblolly
• naphtali
• nepali
• secale
• somali
• colley