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
physical proof
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "physical proof" is correct and usable in written English.
You might use it when describing tangible evidence of something, such as in the sentence: "The witness provided physical proof of the crime."
✓ Grammatically correct
News & Media
Academia
Science
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
60 human-written examples
He lambasted the string theory of particle physics, arguing that it relied too much on theoretical, rather than physical, proof.
News & Media
-What physical proof exists for this theory?
News & Media
Again, physical proof of the theory is lacking.
News & Media
It abducts personality, consuming the essence of self while leaving the physical proof of self behind.
News & Media
None of the assertions — by Israel, Britain or France — have included physical proof.
News & Media
That handshake was transmitted around the Yankees' universe, physical proof of a mended relationship.
News & Media
No article seems to mention that there are physical proof it actually exists.
Academia
Physical proof and power dissipation analysis is derived for the proposed 3-input majority gate.
Science
But the physical proof of evolution has always demanded that there should be links or transitional forms.
News & Media
DON'T PLAY GAMES -- Be absolutely sure your complaint is legitimate and back it up with as much physical proof as possible.
News & Media
At Neshiko beach, ascension rock – physical proof that there were those who refused to abandon their faith – is half submerged by the incoming tide.
News & Media
Expert writing Tips
Best practice
When using "physical proof", ensure that the context clarifies what constitutes the physical evidence and why it's significant in supporting the claim. For instance, stating "the fingerprints on the weapon provided physical proof of his involvement" is more effective than just saying "there was physical proof".
Common error
Avoid assuming that "physical proof" is always necessary or superior to other forms of evidence. In some situations, testimonial, circumstantial, or digital evidence can be equally or more compelling. Relying solely on tangible items can limit the scope of evidence considered and may lead to overlooking critical information.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "physical proof" functions as a noun phrase, typically serving as the subject or object of a sentence. It denotes tangible evidence that supports a claim or assertion. Ludwig examples show it used in diverse scenarios, ranging from scientific theories to personal relationships, to describe the existence or validity of something.
Frequent in
News & Media
42%
Academia
20%
Science
18%
Less common in
Encyclopedias
4%
Wiki
4%
Formal & Business
2%
Ludwig's WRAP-UP
In summary, "physical proof" refers to tangible evidence used to support a claim. Ludwig's analysis confirms that the phrase is grammatically correct and frequently employed across various domains, particularly in news, academia, and science. While it's essential for providing credibility, remember that relying solely on "physical proof" can sometimes limit the scope of evidence considered. Consider alternatives like "tangible evidence" or "concrete evidence" for nuanced expression. Using "physical proof" effectively requires clear articulation of what constitutes the evidence and its significance in supporting the argument.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
tangible evidence
This alternative emphasizes the concrete and touchable nature of the evidence, similar to "physical proof".
material evidence
This focuses on the evidence being composed of matter and being concrete in nature.
concrete evidence
This alternative highlights the solid, irrefutable nature of the evidence.
empirical evidence
This suggests evidence derived from observation or experiment, aligning with the idea of "physical proof".
verifiable evidence
This emphasizes the aspect of being able to confirm or substantiate the proof.
hard evidence
This highlights the undeniable and strong nature of the proof.
demonstrable proof
This emphasizes the ability to show or prove something clearly and convincingly.
factual evidence
This alternative stresses that the evidence is based on facts and reality.
objective evidence
This underlines the impartiality and lack of bias in the evidence.
scientific validation
This focuses on the confirmation of something using scientific methods, a specific type of proof.
FAQs
How do you use "physical proof" in a sentence?
You can use "physical proof" to describe tangible evidence that supports a claim, such as: "The recovered documents provided "physical proof" of the company's fraudulent activities."
What's a good substitute for "physical proof"?
Depending on the context, you can use alternatives like "tangible evidence", "material evidence", or "concrete evidence".
Is "physical proof" always necessary to prove something?
No, "physical proof" isn't always required. Other forms of evidence, such as witness testimonies or digital records, can also be used to support a claim, especially when "physical proof" is unavailable.
What kind of evidence is considered "physical proof"?
Physical proof typically includes tangible items such as documents, objects, DNA samples, or any other material evidence that can be examined and verified.
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