Definition of authoritynext
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as in reason
something (as a belief) that serves as the basis for another thing I had good authority to believe that the information was correct

Synonyms & Similar Words

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as in source
something mentioned in a text as providing related and especially supporting information the Bible is the sole authority for his impassioned defense of creationism

Synonyms & Similar Words

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Synonym Chooser

How does the noun authority contrast with its synonyms?

Some common synonyms of authority are command, control, dominion, jurisdiction, power, and sway. While all these words mean "the right to govern or rule or determine," authority implies power for a specific purpose within specified limits.

granted the authority to manage her estate

When is command a more appropriate choice than authority?

While the synonyms command and authority are close in meaning, command implies the power to make arbitrary decisions and compel obedience.

the army officer in command

When would control be a good substitute for authority?

The meanings of control and authority largely overlap; however, control stresses the power to direct and restrain.

you are responsible for the students under your control

When might dominion be a better fit than authority?

The words dominion and authority can be used in similar contexts, but dominion stresses sovereign power or supreme authority.

given dominion over all the animals

When can jurisdiction be used instead of authority?

In some situations, the words jurisdiction and authority are roughly equivalent. However, jurisdiction applies to official power exercised within prescribed limits.

the bureau having jurisdiction over parks

In what contexts can power take the place of authority?

The words power and authority are synonyms, but do differ in nuance. Specifically, power implies possession of ability to wield force, authority, or influence.

the power to mold public opinion

When could sway be used to replace authority?

The synonyms sway and authority are sometimes interchangeable, but sway suggests the extent of exercised power or influence.

the empire extended its sway over the region

Example Sentences

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.
Recent Examples of authority His research was part of a nearly eight-year effort, from November 2018 to May 2026, involving his team and the military, which helped authorities narrow their search to the park. — Aniruddha Ghosal, Los Angeles Times, 14 Oct. 2026 There are no authorities in place to check whether the ashes were scattered over the sea. — Literary Hub, 14 Oct. 2026 The ship has arrived at safe anchorage and none of its crew were hurt, the Singapore maritime authority said. — Spencer Kimball, CNBC, 14 Oct. 2026 Fugazi said the changes were within her authority and emphasized that the decision was not personal. — Madisen Keavy, CBS News, 14 Oct. 2026 See All Example Sentences for authority
Recent Examples of Synonyms for authority
Noun
  • They are usually still protected by maternal antibodies, experts say.
    — Arkansas Online, Arkansas Online, 18 Oct. 2026
  • The Rockefeller Foundation has just published a policy proposal – developed in partnership with leading experts – that details how a Growth and Investment Reset could work.
    — Masood Ahmed, Fortune, 17 Oct. 2026
Noun
  • Last week, a federal judge granted the news outlets their request for a preliminary injunction against the government ban as the case moves through the legal system.
    — Arkansas Online, Arkansas Online, 21 Oct. 2026
  • Filling a government gap The new pledge comes as governments fall far behind their own nature-funding targets.
    — Sydney Lake, Fortune, 21 Oct. 2026
Noun
  • The four-bedroom home features modern heritage influences—like contemporary shaker furniture paired with more contemporary light fixtures—that define the interiors.
    — Audrey Lee, Architectural Digest, 20 Oct. 2026
  • Dark matter cannot be observed directly through ordinary light, but its gravitational influence helps shape the distribution of galaxies.
    — Kaif Shaikh, Interesting Engineering, 20 Oct. 2026
Noun
  • Its boosted flat-six engine receives a power bump, and rear-axle steering is now standard, as are larger brakes with six-piston calipers up front.
    — Bradley Iger, Robb Report, 16 Oct. 2026
  • Europe is now home to some of the most promising companies building clean power, while remaining an expensive place to buy it.
    — Sophie Dembinski, Fortune, 16 Oct. 2026
Noun
  • All the more reason for leaders to play the generosity sweepstakes in ways that are advantageous to them.
    — Diane Brady, Fortune, 20 Oct. 2026
  • For that reason, Everett’s proposal is known as the Many Worlds interpretation of quantum mechanics.
    — Philipp Strasberg, Scientific American, 20 Oct. 2026
Noun
  • The kingdom, and its neighbors like the UAE and Qatar, have pitched themselves as not just sources of capital, but as a safe home for trillions in financial assets, data centers, and new industries.
    — Liz Hoffman, semafor.com, 19 Oct. 2026
  • Portioned cups of sauces, dressings have some sort of liquid sitting on the lids from an unknown source.
    — NWA Democrat-Gazette, Arkansas Online, 19 Oct. 2026
Noun
  • The effectiveness of the approach will depend on how well the systems perform under operational conditions and against evolving electronic warfare threats.
    — Aamir Khollam, Interesting Engineering, 16 Oct. 2026
  • That recommendation went against the scientific conclusion of FDA’s staff scientists, who reiterated that none of the peptides had been studied enough to establish their safety and effectiveness.
    — ABC News, ABC News, 15 Oct. 2026
Noun
  • Named the After Series, Anastassiades drew inspiration from Danish masters like Kaare Klint and Poul Kjærholm.
    — Sofia Celeste, Footwear News, 15 Oct. 2026
  • After graduating, Tatham went to UCLA for a masters in architecture.
    — Todd Martens, Los Angeles Times, 13 Oct. 2026

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Cite this Entry

“Authority.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/authority. Accessed 21 Oct. 2026.

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