monopoly

adverb1 of 2

complete control of the market for a service or product

• “That company has a monopoly in the field, so to speak.”Tatoeba
• “We need to break their monopoly on the narrative.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

A situation, by legal privilege or other agreement, in which solely one party (company, cartel etc.) exclusively provides a particular product or service, dominating that market and generally exerting powerful control over it.