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
that is true
Grammar usage guide and real-world examplesUSAGE SUMMARY
"that is true" is a valid and usable part of a sentence in written English.
You can use it when you want to show agreement with a previous statement or to affirm the truth of something. For example: "I heard that the restaurant closed down last night - that is true, I saw the notice myself."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
that is indeed
that's right
that rings true
how true
that is less true
that is valid
that's so true
that is actually true
that's the truth
that's very true
that is accurate
that is the truth
that is a fact
you're right
that is real
that is right
that is absolutely correct
that is even true
i couldn't agree more
that is so true
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
48 human-written examples
VILLANTE: That is true.
News & Media
All that is true.
News & Media
Perhaps that is true.
News & Media
That is true tolerance".
News & Media
Hopefully, that is true.
News & Media
DAN: That is true.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
12 human-written examples
No doubt that was true.
News & Media
Legally, that's true.
News & Media
That was true praise".
News & Media
No, that's true.
News & Media
Well, that was true.
News & Media
Expert writing Tips
Best practice
Use "that is true" to succinctly confirm information or agree with a previous statement. It provides a clear and direct affirmation.
Common error
Avoid using "that is true" repetitively in close succession. Vary your affirmations with synonyms like "indeed", "correct", or "right" to maintain engagement and avoid monotony.
Source & Trust
92%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "that is true" is as an affirmative response or validation. It confirms the truthfulness of a preceding statement. Ludwig AI indicates its correctness and frequent usage, supported by numerous examples of both exact matches and similar phrases.
Frequent in
News & Media
66%
Academia
18%
Science
8%
Less common in
Formal & Business
4%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "that is true" serves as a straightforward affirmation, indicating agreement or confirmation of a statement. As highlighted by Ludwig, it is grammatically correct and widely used. Analysis of various sources shows its prevalence in news and media, academic writing, and scientific discourse. For alternative expressions, consider using "that's correct", "that's right", or "that is indeed", depending on the desired level of formality and emphasis. When writing, be mindful of overuse and vary your language to maintain reader engagement. Keep in mind, as per Ludwig AI that the statement is correct and suitable for multiple contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that's correct
Replaces "is" with "'s", a contraction of "is", for a slightly more informal tone.
that is correct
Uses "correct" instead of "true", emphasizing accuracy or validity.
that's right
Replaces "is true" with "'s right", which is a common and informal way to express agreement.
that is right
Uses "right" instead of "true", offering a slightly more colloquial feel.
that is indeed
Adds "indeed" for emphasis, reinforcing the affirmation.
that's the truth
Replaces "true" with "the truth", emphasizing the factual nature of the statement.
that is the truth
Emphasizes the factual aspect of the statement using the term "the truth".
that's a fact
Substitutes "true" with "a fact", underlining the objective reality of the assertion.
that is a fact
Replaces "true" with "a fact" to highlight the objective and verifiable nature of the statement.
that is accurate
Uses "accurate" instead of "true", focusing on precision and correctness.
FAQs
How can I use "that is true" in a sentence?
You can use "that is true" to express agreement or confirm a statement. For example: "Is it raining outside?" "That is true, I just saw someone with an umbrella."
What are some alternatives to saying "that is true"?
Instead of "that is true", you could say "that is correct", "that is right", or "that is indeed" depending on the context and formality you want to convey.
Is it better to say "that is true" or "that's true"?
Both "that is true" and "that's true" are grammatically correct. "That's true" is a contraction and is more informal, while "that is true" is slightly more formal. Choose the option that fits the tone of your writing or conversation.
What's the difference between "that is true" and "that is a fact"?
"That is true" is a general affirmation of a statement's truthfulness. "That is a fact" emphasizes that the statement is objectively verifiable and based on evidence, adding a stronger sense of certainty.
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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
92%
Authority and reliability
4.6/5
Expert rating
Real-world application tested