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
must be characterized
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must be characterized" is correct and usable in written English.
It can be used when describing the essential qualities or features of something that are necessary to understand or define it. Example: "In order to fully appreciate the artwork, it must be characterized by its unique use of color and form."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
should be defined
needs to be assessed
has to be determined
should be described
needs to be identified
ought to be understood
should be understood
needs to be understood
should be evaluated
must be organized
must be ascertained
must be recognized
must be appreciated
must be articulated
must be identified
must be attributed
must be authorized
must be characterised
must be checked
must be integrated
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
"They are plainly dastardly criminal and must be characterized as such.
News & Media
"The catastrophe must be characterized as an act of God and was by its very nature beyond the power of man," the Veterans Authority and Federal Emergency Relief Administration declared in an official report.
News & Media
Science must be characterized by its proper scientific language.
Science
The latter ones are observed via a random pattern that must be characterized.
Each category must be characterized by a lower and upper profile.
These sets are not known in advance and must be characterized in an optimal way.
The reasoning must be characterized in a way that doesn't presuppose the notions we're seeking to explicate.
Science
Therefore, the convergence domain of the optimization must be characterized in detail, exploring how different algorithms behave around reference poses.
To improve stem-lodging resistance, the strong culm traits of superior lodging-resistant varieties must be characterized.
Science
The data used for the identification consist of measurements of several realizations of the uncertain quantities that must be characterized.
Models of mycobacterial persistence, in which compounds with potent sterilizing activity can be rapidly analysed, must be characterized.
Science
Expert writing Tips
Best practice
When using "must be characterized", ensure that the context clearly indicates what criteria or aspects are essential for its understanding or definition. Providing specific parameters enhances clarity.
Common error
Avoid using "must be characterized" in casual conversation or informal writing. Opt for simpler phrases like "needs to be described" or "should be defined" for better readability and appropriateness.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must be characterized" functions as a modal passive construction, indicating a requirement or necessity for something to be described or defined. As Ludwig AI confirms, it is grammatically correct and widely used in academic and formal writing.
Frequent in
Science
81%
News & Media
12%
Formal & Business
7%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "must be characterized" is a grammatically correct and frequently used phrase that signifies the necessity of thoroughly describing or defining something, as validated by Ludwig AI. It is especially prevalent in scientific and formal contexts, emphasizing the importance of precise and detailed analysis. While it is appropriate for these settings, it should be used sparingly in informal communication. Alternatives like "should be defined" or "needs to be assessed" can be used to avoid overuse or in more casual contexts. Understanding the appropriate register and context ensures effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
should be defined
Suggests a recommendation or expectation for defining something.
should be described
Implies the need for a detailed account or explanation.
needs to be assessed
Highlights the requirement for evaluation or judgment.
needs to be identified
Emphasizes the necessity of recognizing or establishing something.
has to be determined
Indicates that something requires establishment or ascertainment.
has to be classified
Highlights the requirement for categorization.
ought to be understood
Suggests a moral or logical imperative for comprehension.
should be understood
Suggests an advisability to understand something.
needs to be understood
Highlights the requirement for comprehension.
should be evaluated
Suggests a recommendation or expectation for evaluating something.
FAQs
What does "must be characterized" mean?
The phrase "must be characterized" means that something needs to be described, defined, or assessed based on its essential qualities or features to ensure a comprehensive understanding. It indicates a requirement for a thorough evaluation or description.
When is it appropriate to use the phrase "must be characterized"?
It is appropriate to use "must be characterized" in formal or scientific contexts where a detailed and precise description or evaluation is required. It's common in academic papers, technical reports, and formal analyses.
What can I say instead of "must be characterized"?
You can use alternatives like "should be defined", "needs to be assessed", or "has to be determined" depending on the specific nuance you want to convey.
How does "must be characterized" differ from "can be characterized"?
"Must be characterized" indicates a necessity or requirement for definition, while "can be characterized" suggests a possibility or option for describing something. The former implies that characterization is essential, while the latter indicates it's permissible but not necessarily required.
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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