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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
critical to know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "critical to know" is correct and usable in written English.
It can be used when emphasizing the importance of certain information that one should be aware of. Example: "It is critical to know the safety procedures before operating the machinery."
✓ Grammatically correct
News & Media
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
59 human-written examples
Finally, when you are pitching, it's critical to know your audience.
News & Media
"It's really critical to know how that trail is going to affect the experience of being on the Merritt Parkway.
News & Media
To determine how big the spillway needs to be, it is critical to know how much water might be impounded behind the dam each year.
News & Media
Clearly, it is critical to know the answer, which is why the Environmental Defenses Fund is currently participating in a study that is expected to provide one.
News & Media
There was consensus from the panel that it is critical to know what your complete value chain and related impacts actually are: mapping 'farm to folk'.
News & Media
For those buying in a building under construction, Mr. Weinstein said, it is critical to know what the apartment is actually going to look like.
News & Media
From an investment perspective it's less critical to know the answer — more diverse companies have better performance regardless of the causality".
News & Media
"Life is full of surprises like jury duty, and when you're surprised is when it becomes critical to know exactly what you're not going to be doing when you're doing jury duty," Mr. Allen said.
News & Media
It is critical to know which property package would be applicable for one's computation.
"Just as with cars, it's critical to know the fuel efficiency of black holes," Allen adds.
Science & Research
For effective diagnostic monitoring, it is critical to know the inherent feature variation resulting from the instrumentation and data processing.
Expert writing Tips
Best practice
When using "critical to know", ensure the information you're highlighting is genuinely essential for the reader's understanding or decision-making. Avoid overusing the phrase, as it can lose its impact if applied to trivial details.
Common error
Don't use "critical to know" when the information is merely helpful or interesting, but not fundamentally necessary. Overstating the importance can undermine your credibility.
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "critical to know" functions as an adjective phrase, modifying an implied or stated noun (such as 'information' or 'aspect'). It emphasizes the necessity and importance of understanding or being aware of something. As Ludwig AI states, the phrase is correct and usable in written English.
Frequent in
Science
40%
News & Media
35%
Formal & Business
10%
Less common in
Academia
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "critical to know" is a grammatically correct and frequently used expression that serves to emphasize the importance of specific information. As Ludwig AI confirms, it's usable in written English and is intended to highlight essential elements for decision-making or understanding. Its usage spans various contexts, including science, news media, and business, lending it a neutral to professional tone. While alternatives like "essential to understand" or "vital to comprehend" can be used, it's important to reserve "critical to know" for situations where the information truly warrants such emphasis, avoiding overuse to maintain its impact.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
essential to understand
Replaces "critical" with "essential", emphasizing necessity but with a slightly different tone.
vital to comprehend
Substitutes "critical" with "vital" and "know" with "comprehend", suggesting a deeper level of understanding is needed.
important to realize
Shifts the focus to realization, implying a prior lack of awareness.
imperative to recognize
Replaces "critical" with "imperative", indicating a command or urgent need for recognition.
necessary to ascertain
Uses "necessary" instead of "critical" and "ascertain" for "know", suggesting a need for verification or confirmation.
crucial to acknowledge
Emphasizes the need to acknowledge something, highlighting its significance.
fundamental to grasp
Suggests that understanding something is foundational for further learning or progress.
key to understanding
Focuses on the idea that knowing something unlocks broader understanding.
paramount to appreciate
Highlights the importance of appreciating or valuing something, rather than just knowing it.
significant to consider
Emphasizes the importance of giving something careful thought and attention.
FAQs
How can I use "critical to know" in a sentence?
You can use "critical to know" to emphasize the importance of a piece of information. For example: "It is "critical to know" the safety procedures before operating this machinery."
What's a more formal alternative to "critical to know"?
For a more formal tone, consider using phrases like "essential to understand" or "imperative to recognize" depending on the specific context.
Is it always necessary to use "it is" before "critical to know"?
While "it is" is a common construction, you can sometimes omit it for brevity, especially in headings or lists. For example, "Critical to know: The project deadline."
What is the difference between "important to know" and "critical to know"?
"Important to know" suggests that the information is valuable or relevant. "Critical to know", on the other hand, indicates that the information is absolutely essential and potentially decisive.
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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
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested