Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a common authority
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a common authority" is correct and usable in written English.
It can be used when referring to a shared or mutual source of power, control, or expertise in a particular context. Example: "In matters of policy, we often look to a common authority to guide our decisions."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(5)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
6 human-written examples
Sometimes deference to a common authority; sometimes fear of adversaries; sometimes common axioms that trump any differences; and sometimes a sentimental "family feeling" that makes people tolerant of eccentricity or even obnoxious behaviour.
News & Media
Another dimension is added at the international level when states are not bound by a common authority and may view restrictions on resource extraction as a threat to their sovereignty.
Encyclopedias
A decentralized web would look much the same way: many points connected not by a common authority, but by a shared intention.
News & Media
Starting with the family, each larger unit responsible for facilitating the flourishing of member units and securing common goods beyond their reach without a common authority.
Science
When people mutually covenant each to the others to obey a common authority, they have established what Hobbes calls "sovereignty by institution".
Science
With this in mind, the EU established a common authority, known as Single Resolution Board, to deal efficiently with potential bank failures.
Formal & Business
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
Local control of both authentication and authorization can be facilitated by the use of a common certification authority (such as Verisign™ [ 35] or SAFE-BioPharma™), using a common certificate policy framework consisting of a certificate practice statement and certificate policy, and a registration agent certification process available to each institution participating.
Granted, caselaw would suggest that companies lack common authority to consent to a government search of the contents of communications, such as emails.
News & Media
Ideally such a union should comprise a single supervisor, a common resolution authority and joint deposit insurance.
News & Media
It would be a sad day if the home of the common law lost its standing as a common Law authority".
News & Media
It would be a sad day if the home of the common law lost its standing as a common law authority".
News & Media
Expert writing Tips
Best practice
Use "a common authority" when you want to emphasize the shared or mutual nature of a governing body or set of rules.
Common error
Avoid using "a common authority" if the power or control is not genuinely shared or recognized by all parties involved. Be sure that there is a consensus, otherwise, a different expression should be used.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a common authority" functions as a noun phrase. It typically acts as a subject, object, or complement in a sentence, referring to a shared or mutual source of power, control, or expertise. According to Ludwig AI, the phrase is grammatically sound and usable.
Frequent in
News & Media
43%
Science
43%
Formal & Business
14%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "a common authority" is grammatically correct and used to denote a shared or mutual source of power or control. According to Ludwig AI, it's perfectly usable in English. While its frequency is classified as uncommon, it appears in a variety of contexts, including news, science, and formal business settings. When using the phrase, clarity is key: ensure the scope and nature of the authority are well-defined. Related phrases include "a shared jurisdiction" and "a mutual governing body". The most frequent sources for examples of the phrase are The Economist and Britannica.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a shared jurisdiction
This alternative focuses on the aspect of shared legal or administrative power.
a mutual governing body
This emphasizes the collaborative aspect of a governing entity.
a collective power structure
Highlights the idea of power being distributed among a group.
a joint regulatory agency
Specifically refers to regulatory bodies that operate together.
a unified command
This alternative implies a single, cohesive leadership.
a collaborative administration
Focuses on the cooperative nature of the administrative body.
a consensual decision-making process
Emphasizes agreement and consent in the decision-making.
a united front
Implies a group working together with a shared purpose and authority.
a centralized power
Focuses on a single entity holding the authority.
an agreed-upon protocol
Highlights the formal agreement on rules or procedures.
FAQs
How can I use "a common authority" in a sentence?
You can use "a common authority" to describe situations where multiple entities are subject to the same governing body or set of rules. For instance, "The countries agreed to establish "a common authority" to regulate trade".
What are some alternatives to "a common authority"?
Alternatives include "a shared jurisdiction", "a mutual governing body", or "a unified command", depending on the specific context.
Is it better to use "a common authority" or "a shared authority"?
Both "a common authority" and "a shared authority" are grammatically correct and have similar meanings. The choice between them often depends on stylistic preference or the specific nuance you want to convey. "Common" emphasizes uniformity, while "shared" highlights the collaborative aspect.
What does it mean when entities are not bound by "a common authority"?
When entities are not bound by "a common authority", it means they operate independently without a central governing body or set of rules binding them. This can lead to conflicts or inefficiencies, as each entity acts according to its own interests.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested