plural monopolies
1
: exclusive ownership through legal privilege, command of supply, or concerted action
specifically : exclusive control of a particular market that is marked by the power to control prices and exclude competition
2
: exclusive possession or control
No country has a monopoly on morality or truth.Helen M. Lynd
3
: a commodity controlled by one party
… had a monopoly on flint from their quarries …Barbara A. Leitch
4
: one that has a monopoly
The government passed laws intended to break up monopolies.

Did you know?

You're probably familiar with the word monopoly, but you may not recognize its conceptual and linguistic relative, the much rarer oligopsony. Both monopoly and oligopsony are ultimately from Greek, although monopoly passed through Latin before being adopted into English. Monopoly comes from the Greek prefix mono-, which means "one," and pōlein, "to sell." Oligopsony derives from the combining form olig-, meaning "few," and the Greek noun opsōnia—"the purchase of victuals"—which is ultimately from the combination of opson, "food," and ōneisthai, "to buy." It makes sense, then, that oligopsony refers to a buyer's market in which the seller is subjected to the potential demands of a limited pool of buyers. Another related word is monopsony, used for a more extreme oligopsony in which there is only a single buyer.

Examples of monopoly in a Sentence

The government passed laws intended to break up monopolies.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But the industry doesn’t have a monopoly on the talent that is required. Paxton Honerkamp, CNBC, 27 June 2026 Few commoners could read Latin, which helped the clergy retain a monopoly on biblical interpretation. Michael Bruening, The Conversation, 30 June 2026 The European Commission will have to walk a fine line as Google’s business interests would be served by not sharing data, and the goal of regulators is to weaken Google’s monopoly. Ryan Whitwam, ArsTechnica, 29 June 2026 Epic filed separate suits against Google and Apple, alleging abuse of monopoly power, and in December 2023, a jury found that Google had done just that. Rob Pegoraro, PC Magazine, 25 June 2026 See All Example Sentences for monopoly

Word History

Etymology

Latin monopolium, from Greek monopōlion, from mon- + pōlein to sell

First Known Use

1534, in the meaning defined at sense 1

Time Traveler
The first known use of monopoly was in 1534

Browse Nearby Words

Cite this Entry

“Monopoly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monopoly. Accessed 7 Jul. 2026.

Kids Definition

monopoly

noun
plural monopolies
1
a
: complete control over the entire supply of goods or a service in a certain market
b
: complete possession
2
: a commercial product or service controlled by one person or company
3
: a company that has a monopoly

Legal Definition

monopoly

noun
plural monopolies
1
: exclusive control of a particular market that is marked by the power to control prices and exclude competition and that especially is developed willfully rather than as the result of superior products or skill see also antitrust, Sherman Antitrust Act
2
: one that has a monopoly

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