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
infringe upon
Grammar usage guide and real-world examplesUSAGE SUMMARY
"infringe upon" is correct and usable in written English.
You can use it when someone or something encroaches on or violates the rights or interests of another. For example: "The company was found guilty of infringing upon the copyright of another artist."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
58 human-written examples
The word did not mean to "infringe upon", as if to mean inconvenience or put borders around, establish parameters.
News & Media
He argues that such products infringe upon his trademark.
News & Media
These measures need not be intrusive, or infringe upon sovereignty.
News & Media
First, many of his suggestions infringe upon the free market and the choices of consumers.
News & Media
They worry that the rising tide of secular liberalism will infringe upon their Christian faith.
News & Media
But Morrisons insists its tie-up with Amazon doesn't infringe upon the contract it signed with Ocado.
News & Media
Akio Okuyama, president of the Japanese Institute of Certified Public Accountants, said that the act would "infringe upon Japanese sovereignty".
News & Media
"We are citizens of the P.R.C., and without a court order, no one can infringe upon our personal freedoms".
News & Media
"To infringe upon Chinese people's cultural rights on the pretext of human rights is just ridiculous," Mr. Ma said.
News & Media
And if they could indeed "inflict injury," might they not infringe upon the religious freedoms of his targets?
News & Media
"U.S. ratification of the treaty would not infringe upon rights guaranteed by the Second Amendment," the report said.
News & Media
Expert writing Tips
Best practice
Use "infringe upon" when you want to express that something is negatively impacting or limiting someone's rights, freedoms, or possessions. Be precise about what is being infringed upon to provide clarity.
Common error
While "infringe upon" is widely accepted, it may sound overly formal in casual conversation. Opt for simpler alternatives like "affect" or "impact" to maintain a natural tone.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrasal verb "infringe upon" functions primarily to express the violation or encroachment of rights, laws, or personal boundaries. As Ludwig AI confirms, it's grammatically sound. Examples show its use in contexts ranging from legal matters to personal freedoms.
Frequent in
News & Media
62%
Science
22%
Formal & Business
7%
Less common in
Encyclopedias
3%
Wiki
3%
Reference
3%
Ludwig's WRAP-UP
In summary, "infringe upon" is a grammatically correct and frequently used phrasal verb that signifies the violation or encroachment of rights, freedoms, or established boundaries. As Ludwig AI confirms, it is suitable for use in formal and neutral contexts, particularly in news, legal, and academic settings. While highly prevalent in authoritative sources like The New York Times and The Guardian, it's advisable to use simpler alternatives such as "encroach on" or "violate" in casual conversations to avoid sounding overly formal.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
encroach on
Implies gradually intruding on someone's rights or territory.
violate
Suggests a clear breach of a law, right, or principle.
transgress
Indicates going beyond the limits of what is morally or legally acceptable.
impinge on
Means to have an effect on something, often in a restrictive or negative way.
invade
Implies entering and occupying a place or situation by force, often metaphorically.
trespass on
Suggests unlawfully entering someone's property or rights.
breach
Indicates a failure to observe a law or agreement.
undermine
Implies weakening or eroding something, often gradually.
trench upon
Suggests a forceful intrusion or encroachment.
disrupt
Implies interrupting or disturbing something.
FAQs
How can I use "infringe upon" in a sentence?
Use "infringe upon" to indicate that something is encroaching on or violating a right, freedom, or boundary. For example, "The new regulations may "infringe upon" personal liberties".
What are some alternatives to "infringe upon"?
Depending on the context, you can use alternatives like "encroach on", "violate", or "impinge on" to convey a similar meaning.
Is it better to use "infringe on" or "infringe upon"?
"Infringe on" and "infringe upon" are often used interchangeably, but "infringe upon" is generally considered more formal. Both are grammatically correct, so the choice depends on the context and desired tone.
What does it mean for a patent to "infringe upon" another?
When a patent "infringes upon" another, it means that the new invention uses, sells, or imports something that is already protected by an existing patent, without permission from the patent holder.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested