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
this could kill
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this could kill" is correct and usable in written English.
It can be used in contexts where you want to express that something has the potential to cause serious harm or death, often in a dramatic or exaggerated manner. Example: "Be careful with that chemical; this could kill if ingested."
✓ Grammatically correct
News & Media
Wiki
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
20 human-written examples
"This could kill the revolution".
News & Media
This could kill him," she said.
News & Media
This could kill off some small innovative start-ups.
News & Media
For private owner/operators, this could kill their year.
News & Media
One power-station builder thinks that this could kill another ten projects.
News & Media
In the case of avian flu, this could kill people very directly.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
[This] could kill him". Jackson "can barely speak", Halperin claimed, and "the vision in his left eye is 95% gone".
News & Media
"For this I could kill myself".
News & Media
"Rita's Champagne has such a beautiful nose," he said, "the aroma of this dish could kill it".
News & Media
"She's a very strong woman … but this really could kill her," said Tommi Avicolli Mecca, director of counseling programs with the Housing Rights Committee, a local advocacy group.
News & Media
He held up the piece of paper for the woman to see, and when she saw it she gasped, then read it out loud: "This boy could kill".
News & Media
Expert writing Tips
Best practice
Use "this could kill" to add emphasis or drama to a situation where the potential for harm is significant. Be mindful of your audience and the context to ensure it's appropriate.
Common error
Avoid using "this could kill" too frequently, as it can lose its impact and sound melodramatic. Opt for more nuanced language when appropriate to maintain the seriousness of the situation without overstatement.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this could kill" functions as a declarative statement expressing a potential and serious consequence. Based on examples Ludwig provides, it's used to warn about possible dangers or risks.
Frequent in
News & Media
70%
Wiki
15%
Science
15%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "this could kill" is a grammatically correct and commonly used expression to warn about potential dangers or risks. As Ludwig AI states, it's suitable for various contexts, particularly in news and media, and carries a neutral to informal tone. While effective for emphasizing danger, overuse can diminish its impact. Alternative expressions like "this could be fatal" or "this could be deadly" can provide nuanced options to avoid repetition.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
this might be fatal
Replaces "could" with "might be" and "kill" with "fatal", suggesting a potentially deadly outcome.
this could be deadly
Substitutes "kill" with "deadly", emphasizing the potential for causing death.
this has the potential to be lethal
Uses more formal language to express the possibility of causing death.
this poses a serious threat
Shifts the focus to the level of danger, rather than the specific outcome of death.
this could have grave consequences
Highlights the severity of the potential results, without explicitly mentioning death.
this could lead to disaster
Indicates a potential for a calamitous outcome.
this might ruin everything
Focuses on the potential for complete destruction or failure.
this spells trouble
Uses a more informal expression to indicate impending problems.
this could be the end of it
Expresses the idea that something could cease to exist or function.
this is playing with fire
An idiomatic expression warning of a risky or dangerous situation.
FAQs
How can I use "this could kill" in a sentence?
You can use "this could kill" to emphasize the potential danger of a situation. For example, "Don't touch that wire; "this could kill" you."
What are some alternatives to "this could kill"?
Alternatives include "this could be fatal", "this could be deadly", or "this poses a serious threat".
Is it appropriate to use "this could kill" in formal writing?
While grammatically correct, "this could kill" might be too dramatic for some formal contexts. Consider using a more neutral alternative like "this could have grave consequences".
What's the difference between "this could kill" and "this might kill"?
"Could" suggests a possibility, while "might" indicates a slightly lower probability. Both express potential danger, but "could" is often used when the risk is perceived to be more significant than when saying "might".
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested