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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
a sign that
Grammar usage guide and real-world examplesUSAGE SUMMARY
'a sign that' is correct and usable in written English.
You can use it to express that something is an indication or proof of a certain thing. For example: "The smile on her face was a sign that she was happy to see him."
✓ Grammatically correct
News & Media
Academia
Wiki
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 held a sign that said so.
News & Media
"It's a sign that things are working.
News & Media
A sign that this is his week?
News & Media
It's a sign that they're worried".
News & Media
This is a sign that he was a Freemason.
Academia
This was a sign that carrot diplomacy may be working.
News & Media
"It's a sign that the power of the C.S.U.
News & Media
He also made note of a sign that cautioned: "Danger.
News & Media
Here was a sign that she wasn't alone".
News & Media
The door bore a sign that read, "NOW UNDERTAKING REPAIRS".
News & Media
"Do we have a sign that big?" she asked.
News & Media
Expert writing Tips
Best practice
When using "a sign that", ensure the connection between the sign and what it indicates is clear and logical to avoid misinterpretation.
Common error
Avoid presenting something as "a sign that" if it is merely a correlation or a possibility, not a strong indicator. Overstating the significance can weaken your argument.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a sign that" primarily functions as a noun phrase introducing a clause. It serves to identify something as an indicator, symptom, or piece of evidence pointing towards a particular conclusion. As Ludwig AI indicates, it's grammatically correct and widely applicable.
Frequent in
News & Media
63%
Wiki
15%
Academia
8%
Less common in
Science
7%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a sign that" is a versatile and frequently used phrase that acts as a noun phrase to introduce a clause, which serves to identify something as an indicator or evidence pointing towards a particular conclusion. Ludwig AI confirms its grammatical correctness and wide applicability across various contexts, particularly in News & Media. While suitable for a range of writing styles, from informal to formal, it's essential to ensure the connection between the "sign" and what it indicates is clear and logically sound to avoid misinterpretations. Alternatives such as "an indication that", "evidence that", or "proof that" can be used based on the context and the need to express the strength of the evidence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
an indication that
Replaces "sign" with a more general term for something pointing to a conclusion.
evidence that
Focuses on the phrase as proof or support for a particular fact or belief.
proof that
Suggests a more definitive confirmation or verification of something.
a confirmation that
Suggests the phrase is used to ratify or verify something.
a signal that
Emphasizes the phrase as a deliberate or unintentional communication.
a symptom that
Implies the phrase is characteristic of a condition or problem.
a demonstration that
Highlights the phrase as an act of showing something clearly.
a clue that
Highlights the phrase as a piece of information that helps solve a mystery or puzzle.
a harbinger that
Indicates that something is a precursor to future events.
an omen that
Suggests a more mysterious, prophetic indication of what is to come.
FAQs
How can I use "a sign that" in a sentence?
"A sign that" is used to indicate that something serves as evidence or an indication of something else. For example, "The increase in sales is "a sign that" the new marketing campaign is working."
What are some alternatives to saying "a sign that"?
You can use alternatives like "an indication that", "evidence that", or "proof that" depending on the context and the strength of the evidence you're presenting.
Is it always appropriate to use "a sign that"?
While generally acceptable, ensure the connection between the "sign" and what it indicates is logically sound. Avoid using it for weak correlations.
How does the formality of my writing affect using "a sign that"?
"A sign that" is suitable for various contexts, from informal to formal writing. However, in highly formal or academic contexts, you might consider alternatives like "demonstrates that" or "provides evidence that".
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested