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
true only for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "true only for" is correct and usable in written English.
It can be used to specify that a statement or condition applies exclusively to certain cases or situations. Example: "This theorem is true only for prime numbers."
✓ Grammatically correct
Science
News & Media
Academia
Encyclopedias
Alternative expressions(4)
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
But that was true only for a while.
News & Media
By the way, this is true only for quartz watches.
News & Media
That is true only for the sections created by the model authors' own code.
Academia
This is true only for irregular riders, not for those holding regular weekly transportation cards.
News & Media
This was true only for old SCCs, while no correlation was found for young SCCs.
Science & Research
Why that should be true only for this particular biotype is unknown.
News & Media
This is true only for the little guys without sufficient resources.
News & Media
The maximum of the capacitance coincides with the p.z.c., but it is true only for this 'symmetric' system.
Science
"Only 10percenttoto having access to medical care" is surely true only for a relatively wealthy population.
In 1817 they showed that Newton's law of cooling was true only for small differences in temperature.
Encyclopedias
It appears that solution of the electroneutral equilibrium represents a narrow class of solutions and is true only for certain relations between the parameters of the problem.
Science
Expert writing Tips
Best practice
When using "true only for", ensure that the conditions or cases to which the statement applies are clearly defined to avoid ambiguity. Use it to make statements more precise.
Common error
Avoid assuming a statement is universally true when it's "true only for" specific situations. Explicitly state the limitations to prevent readers from misinterpreting the scope of the statement.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "true only for" functions as a qualifier or limiter, specifying the precise conditions under which a statement or assertion is valid. This is reflected in Ludwig's examples, where the phrase restricts applicability to particular scenarios.
Frequent in
Science
52%
News & Media
29%
Academia
9%
Less common in
Encyclopedias
4%
Wiki
2%
Formal & Business
2%
Ludwig's WRAP-UP
The phrase "true only for" serves as a crucial tool for precise communication, particularly in contexts demanding accuracy and clarity. As confirmed by Ludwig, it functions as a qualifier, restricting the validity of a statement to specific conditions. Its frequency across various fields underscores its importance in preventing overgeneralization and ensuring accurate interpretation. When using "true only for", it's vital to clearly define the conditions or cases to which the statement applies. In essence, "true only for" is a signal for readers, indicating that care should be taken in understanding the specified limitations of the statement.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
valid exclusively for
Focuses on the validity being restricted, emphasizing that the statement doesn't apply elsewhere.
applicable solely to
Highlights that the statement's application is limited to a specific subset.
accurate specifically for
Emphasizes that the accuracy is confined to certain instances.
holds precisely for
Indicates that the statement is true under very specific conditions with no deviation.
correct under circumstances of
Specifies conditions under which the statement is correct.
restricted to
Highlights that the statement's scope is intentionally limited.
only the case with
Indicates uniqueness of its applicability
legitimate within realm of
Implies a specified context or domain of applicability.
applies when
Simple rewording highlighting when the statement is applicable.
works exclusively in cases of
Emphasizes the exclusive nature of the statement's effectiveness under certain circumstances.
FAQs
How do I use "true only for" in a sentence?
Use "true only for" to specify conditions under which a statement is valid. For example, "This rule is "true only for" even numbers" indicates the rule applies exclusively to even numbers.
What are some alternatives to "true only for"?
Alternatives include "valid exclusively for", "applicable solely to", or "accurate specifically for", depending on the nuance you wish to convey.
Is it better to use "true only for" or "only true for"?
"True only for" is generally preferred for clarity and emphasis on the condition being the determining factor. "Only true for" is also acceptable, but can sometimes sound less formal.
What's the difference between "true only for" and "partially true for"?
"True only for" indicates that a statement is exclusively valid under specific conditions. In contrast, "partially true for" suggests that the statement holds some truth but may not be entirely accurate or complete even under those conditions.
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