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
it defines whether
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it defines whether" is correct and usable in written English.
You can use it when discussing criteria or conditions that determine a specific outcome or situation. Example: "The algorithm is designed to analyze the data and it defines whether the results meet the required standards."
✓ Grammatically correct
Science
News & Media
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
7 human-written examples
"But how you handle it defines whether you've got P.T.S.D.
News & Media
It defines whether the new order will be one in which power will be shared or transferred peacefully and democratic bodies strengthened – or whether the state will be captured and institutions subverted to the will of the new autocratic rulers.
News & Media
In particular, it defines whether the system performance model can be executed, simulated, or statically analysed.
It defines whether the requirement has been analysed and if it is in conflict.
Normalize bias is a parameter which it defines whether the output values has been predicted less or higher than the actual amount.
This experimental study of dynamic wetting in metering and pre-metered forward roll coating shows that the dimensionless applicator flow rate λA, is a key parameter as it defines whether dynamic failure occurs by air entrainment (λA>λA,trans) or cascade (λA<λA,trans).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
Treat orgasm as a little (or big) bonus rather than letting it define whether it was a satisfying experience.
News & Media
If we use a generating function with special properties, then it is not immediately clear whether it defines a general fuzzy partition.
Science
Further studies on the vlo1 maize mutant, including cloning this, gene will help us to understand whether it defines a novel step in the abaxial-adaxial patterning of anthers in maize.
Science
At first, it should define whether curvature has any effect on permeability change or it is only a fracture shape change, without effect on permeability.
Science
In this approach a score was computed for each tetranucleotide so that it would define whether the word is enriched within TFBS or not.
Science
Expert writing Tips
Best practice
When using "it defines whether", ensure that the subject "it" is clearly defined and understood within the context. Ambiguity in the subject can lead to confusion about what is doing the defining.
Common error
Avoid using "it defines whether" in overly complex sentences where the meaning becomes convoluted. Break down the sentence for clarity, or use a simpler phrase such as "it shows if" or "it determines if" to make the meaning more accessible.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it defines whether" functions as a connector, linking a subject ('it') to a condition or criterion that determines a specific outcome. According to Ludwig, this expression is grammatically correct and serves to establish a clear relationship between a determinant and its consequence.
Frequent in
Science
50%
News & Media
42%
Formal & Business
8%
Less common in
Academia
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "it defines whether" is a grammatically sound construction used to establish a conditional relationship between a subject and an outcome. According to Ludwig, the phrase is useful for clarifying the criteria by which something is determined. While "it defines whether" is relatively uncommon, its formality and precision make it suitable for academic and technical writing. While alternatives like "it determines if" are available, "it defines whether" is most effective when outlining decision-making processes with clear determinants.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it determines if
Replaces "whether" with "if", simplifying the expression while retaining the core meaning of determination.
it specifies whether
Substitutes "defines" with "specifies", emphasizing the act of explicitly stating a condition or criteria.
it establishes if
Uses "establishes" to highlight the setting of a clear condition, similar to defining.
it clarifies whether
Replaces "defines" with "clarifies", suggesting a removal of ambiguity regarding a condition.
it hinges on whether
Emphasizes the dependence of an outcome on a particular condition.
it depends on if
Similar to "hinges on", indicating a reliance on a condition being met.
it influences if
Shifts the focus to influence rather than strict definition, implying a less direct effect.
it dictates whether
Replaces "defines" with "dictates", indicating a stronger, more authoritative determination.
it controls if
Implies a degree of control over the condition or outcome.
it sets the condition if
Focuses on the establishment of the condition that must be fulfilled.
FAQs
How can I use "it defines whether" in a sentence?
Use "it defines whether" to show a direct relationship between a condition and an outcome. For example, "The algorithm analyzes the data, and "it defines whether" the results meet the required standards".
What can I say instead of "it defines whether"?
You can use alternatives like "it determines if", "it specifies whether", or "it establishes if", depending on the nuance you want to convey.
Is it better to use "it defines whether" or "it determines whether"?
Both phrases are grammatically correct, but "it determines whether" might be slightly more common and versatile. "It defines whether" emphasizes the act of setting the terms or criteria.
Can "it defines whether" be used in formal writing?
Yes, ""it defines whether"" is appropriate for formal writing, especially when precision and clarity are important. However, ensure that the subject "it" is clearly defined in the context.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested