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
concrete proof
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "concrete proof" is correct and commonly used in written English.
It is used to describe evidence that cannot be disputed because it is based on fact. For example, "The police presented concrete proof that the suspect had committed the crime."
✓ 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
60 human-written examples
Here, finally, is concrete proof that Kennedy was killed by the C.I.A. or the Mafia or aliens from Planet Z.
News & Media
Baseball wanted concrete proof.
News & Media
Not concrete proof of anything, he conceded.
News & Media
In fact, there is no concrete proof of weapons development.
News & Media
Yet they still say officially they have no concrete proof of a weapons programme.
News & Media
A senior administration official said Washington would be looking for concrete proof of Russia's intentions.
News & Media
They have seized on her lack of concrete proof about Madoff to portray her as unreliable.
News & Media
"We've never seen any concrete proof that we are children of the disappeared..
News & Media
My parents' results gave them the concrete proof of their ancestry that they'd always been denied.
News & Media
In 10 years, the pressure to deliver concrete proof of green claims will intensify.
News & Media
There is no concrete proof just yet in terms of bookings, Mr. Ridley acknowledged.
News & Media
Expert writing Tips
Best practice
When using "concrete proof", ensure that the evidence presented is factual, verifiable, and directly supports the claim being made. Avoid vague or circumstantial evidence.
Common error
Avoid labeling circumstantial evidence as "concrete proof". Circumstantial evidence may suggest a conclusion, but it does not definitively prove it. Only factual, directly relevant evidence qualifies as "concrete proof".
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "concrete proof" functions as a noun phrase, typically serving as the object or complement in a sentence. It denotes factual evidence that is undeniable and directly supports a claim. Ludwig AI confirms its correct usage.
Frequent in
News & Media
40%
Science
25%
Formal & Business
15%
Less common in
Wiki
10%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "concrete proof" is a frequently used and grammatically sound noun phrase that signifies undeniable and factual evidence. As Ludwig AI confirms, it effectively serves to persuade and validate claims across various registers. Predominantly found in News & Media, Science, and Formal & Business contexts, using "concrete proof" implies presenting verifiable and directly relevant evidence, distinguishing it from weaker forms of evidence like circumstantial claims. By focusing on tangible and irrefutable elements, you can strengthen your arguments and promote better understanding.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
irrefutable evidence
Emphasizes the impossibility of arguing against the evidence.
indisputable facts
Focuses on the factual nature of the proof, making it difficult to challenge.
solid evidence
Highlights the strength and reliability of the evidence.
definitive evidence
Suggests that the evidence is conclusive and leaves no room for doubt.
tangible evidence
Implies that the evidence is perceptible and real.
hard evidence
Stresses that the evidence is robust and undeniable.
unquestionable proof
Highlights the certainty of the proof, making it hard to dispute.
verified facts
Implies the facts have been checked and confirmed.
demonstrable truth
Focuses on the ability to show the truth through evidence.
established evidence
Suggests the evidence is well-recognized and accepted.
FAQs
How can I use "concrete proof" in a sentence?
Use "concrete proof" when you want to emphasize that the evidence is factual and undeniable. For example, "The prosecution presented "concrete proof" of the defendant's guilt".
What are some alternatives to saying "concrete proof"?
You can use alternatives like "irrefutable evidence", "solid evidence", or "indisputable facts" depending on the context.
What's the difference between "concrete proof" and "circumstantial evidence"?
"Concrete proof" is direct and factual, leaving little room for doubt. "Circumstantial evidence", on the other hand, is indirect and requires inference to connect it to a conclusion. It is not "hard evidence".
Is "concrete proof" a formal or informal term?
"Concrete proof" is suitable for both formal and informal contexts. It is commonly used in legal, academic, and everyday discussions to emphasize the validity of evidence.
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