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
is true
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is true" is correct and usable in written English.
It can be used to affirm the accuracy or validity of a statement or belief. Example: "The theory proposed by the scientist is true, as it has been supported by extensive research."
✓ Grammatically correct
News & Media
Science
Alternative expressions(8)
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
VILLANTE: That is true.
News & Media
And this is true.
News & Media
Which is true enough.
News & Media
Which is true.
News & Media
But neither is true.
News & Media
Neither statement is true.
News & Media
"It is true".
News & Media
Neither story is true.
News & Media
A heart is true.
News & Media
The reverse is true.
News & Media
It is true now.
News & Media
Expert writing Tips
Best practice
Use "is true" to affirm the accuracy or validity of a statement. Ensure that the context clearly supports the assertion of truth.
Common error
Avoid using "is true" when the truth is already implied. For instance, instead of saying "The fact is true", simply state "The fact is..."
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is true" functions as a predicate adjective, affirming the validity or accuracy of a preceding subject. Ludwig AI shows this usage across various contexts, confirming its role in declaring something as factually correct or genuine.
Frequent in
News & Media
57%
Science
23%
Formal & Business
10%
Less common in
Encyclopedias
5%
Wiki
3%
Reference
2%
Ludwig's WRAP-UP
The phrase "is true" is a common and versatile expression used to confirm the accuracy or validity of a statement. As confirmed by Ludwig AI, it is grammatically correct and appears frequently in diverse contexts, including news, science, and formal business communications. While straightforward, it's important to use the phrase judiciously, avoiding redundancy and ensuring clear and effective communication. Consider alternatives like "is correct" or "is accurate" to add nuance or precision to your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is correct
Replaces "true" with "correct", focusing on factual accuracy.
is accurate
Substitutes "true" with "accurate", emphasizing precision and exactness.
is valid
Replaces "true" with "valid", highlighting logical soundness and legitimacy.
is factual
Substitutes "true" with "factual", stressing the basis in empirical evidence.
is the case
Offers a more formal alternative, emphasizing the reality of the situation.
is indeed so
Adds emphasis and confirmation, highlighting the veracity of the statement.
is verifiably so
Emphasizes that the statement can be proven true.
is authenticated
Indicates that the statement has been confirmed as genuine.
is confirmed
Highlights that the statement has been verified.
is substantiated
Focuses on providing evidence or support for the truth of the statement.
FAQs
What can I say instead of "is true"?
You can use alternatives like "is correct", "is accurate", or "is valid" depending on the context.
How to use "is true" in a sentence?
You can use "is true" to affirm the accuracy or validity of a statement. For example, "The statement that the Earth is round is true".
Which is correct, "is true" or "is truth"?
"Is true" is correct. "Is truth" is grammatically incorrect; truth is a noun and doesn't function well in that structure.
What's the difference between "is true" and "is accurate"?
"Is true" generally affirms a statement's overall truthfulness, while "is accurate" emphasizes precision and exactness. For example, "The general idea is true, but some details are not entirely accurate".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested