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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
it exclusively contains
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it exclusively contains" is correct and usable in written English.
You can use it to specify that something is made up entirely of certain elements or components without including anything else. Example: "The recipe is simple; it exclusively contains flour, water, and salt."
✓ Grammatically correct
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Since our study exclusively contains Europeans, it was unlikely that we would obtain sufficient power to detect an association.
Science
It was determined that the increased expression group exclusively contains genes involved in pathways for matrix metalloproteinases (MMPs), Wnt signaling, TGF-β signaling, and inflammatory pathways.
Science
However, it has to be emphasized that the latter phospholipid exclusively contains a short but unpolar acetyl residue at this position.
In addition, GPDD almost exclusively contains biodiversity monitoring schemes that have collected count data and that have targeted the EBV class 'Species Populations' (specifically through the EBV Populationn abundance').
Science & Research
Mechanical erosion is supported by occasional deposition of high-energy grainstone, which exclusively contains reworked Permian faunas, within the base of the microbial limestone19.
Science & Research
In such conditions β-lg preferentially concentrates in the bottom phase, while the top phase exclusively contains the proteins α-la and Gmp.
Science
As shown in Figure 5e, the resulting image exclusively contains pixels belonging to the aorta, which will be used to select and restore the latter in the segmentation stage.
A group that exclusively contains all the protosteloid amoebae is rejected (Table 2).
Science
The only region of the dorsal striatum that exclusively contains limbic projections is the posteroventral Put [45].
Science
Specifically, the increased expression group exclusively contains genes involved in pathways for matrix metalloproteinases (MMPs), Wnt signaling, axon guidance, TGF-β signaling, and inflammation.
Science
There is no discrete clade of Amoebozoa that exclusively contains all the fruiting species we included in our taxon sample in our highest likelihood tree (Figure 3).
Science
Expert writing Tips
Best practice
Use "it exclusively contains" to clearly and concisely specify the exact components or elements of something, leaving no room for ambiguity about additional inclusions. For example, "The sample it exclusively contains water and salt."
Common error
Avoid using "it exclusively contains" in very simple sentences where a more direct verb like "includes" or "features" would suffice. Overusing the phrase can make your writing sound unnecessarily verbose.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it exclusively contains" functions as a declarative statement, asserting that a particular subject is composed solely of specific elements. Ludwig suggests that this structure is grammatically sound and appropriate for conveying precise information.
Frequent in
Science
69%
News & Media
9%
Academia
7%
Less common in
Formal & Business
5%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "it exclusively contains" is a grammatically sound and useful construction for specifying the precise composition of something. While Ludwig indicates this phrase is suitable for various contexts, its usage is most prevalent in scientific and formal writing. It emphasizes that the subject includes only the mentioned elements, excluding everything else. For variety, consider using alternatives such as "it consists solely of" or "it only includes", ensuring that the replacement maintains the intended meaning and level of formality.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it consists solely of
Replaces "exclusively contains" with "consists solely of", emphasizing the single component.
it is composed entirely of
Uses "composed entirely of" instead of "exclusively contains", focusing on the make-up of something.
it solely comprises
Substitutes "exclusively contains" with "solely comprises", indicating that something is made up of the single thing.
it is made up exclusively of
Rephrases "exclusively contains" with "made up exclusively of", which breaks down the composition.
it only includes
Replaces "exclusively contains" with "only includes", focusing on inclusive aspect.
it is restricted to
Uses "restricted to" instead of "exclusively contains", which shows something is limited.
it is limited to
Substitutes "exclusively contains" with "limited to", showing a boundary or a maximum inclusion.
it features only
Replaces "exclusively contains" with "features only", to highlight what's present and exclusively available.
it is uniquely comprised of
Emphasizes that the subject's composition is special and made up of unique things.
its contents are purely
Shifts the focus to the contents being pure with the exclusion of anything else.
FAQs
How can I rephrase "it exclusively contains" for variety?
You can use alternatives like "it consists solely of", "it solely comprises", or "it only includes" to add variety to your writing while maintaining the meaning.
Is "it exclusively contains" appropriate for formal writing?
Yes, "it exclusively contains" is suitable for formal writing, especially in scientific or technical contexts where precision is important. However, ensure that its use enhances clarity rather than adding unnecessary complexity.
What does "exclusively" emphasize in the phrase "it exclusively contains"?
The word "exclusively" emphasizes that the subject contains only the specified elements and nothing else. It rules out the presence of any additional components.
Can I use "it exclusively contains" when referring to abstract concepts?
Yes, you can use "it exclusively contains" when referring to abstract concepts, but ensure that the elements being contained are clearly defined. For example, "The argument it exclusively contains logical fallacies and personal attacks."
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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
4.1/5
Expert rating
Real-world application tested