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
contain as
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "contain as" is not correct and does not convey a clear meaning in written English.
It is not typically used in standard English, and its intended meaning is unclear without additional context. Example: "The document should contain as many details as possible."
⚠ May contain grammatical issues
News & Media
Encyclopedias
Science
Wiki
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
57 human-written examples
An economy beefburger can legally contain as little as 47% beef.
News & Media
The conifer group has about eight families that could contain as many as 400 species.
News & Media
Capsules today contain as much as 250 milligrams; in Germany, where herbal remedies are regulated, the recommended dose is 40.
News & Media
A single actively replicating eukaryotic cell, for example, may contain as many as 10 million ribosomes.
Encyclopedias
Population estimates suggest that the species may contain as many as 25,000 individuals.
Encyclopedias
Each proglottid, following fertilization, may contain as many as 40,000 embryos encased in separate capsules.
Encyclopedias
An infected individual can contain as many as 100 billion virus particles.
News & Media
All three sections of the canon contain, as well, an abundance of legends and other narratives.
Encyclopedias
Antimonial lead alloys usually contain from 1 to 6 percent antimony, but they may contain as much as 25 percent.
Encyclopedias
Copper ores used to contain as much as 30% copper.
News & Media
When optimized, the drug-loaded PLGA/PLA nanoparticles contain as much as 2.5% haloperidol.
Expert writing Tips
Best practice
When using "contain as", carefully examine the sentence to ensure the meaning is clear and grammatically sound. Often, replacing it with a more precise verb like "include", "hold", or "comprise" can enhance clarity.
Common error
Avoid using "contain as" when a simpler, more direct verb would suffice. Overusing this phrase can lead to awkward and unclear sentences. Instead, opt for verbs like "include", "have", or "hold" to express the intended relationship more effectively.
Source & Trust
80%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "contain as" functions primarily as a verb phrase, attempting to describe the act of including or comprising something. However, Ludwig AI identifies that it often appears in grammatically awkward constructions, suggesting it may not always be used correctly.
Frequent in
News & Media
34%
Science
33%
Encyclopedias
15%
Less common in
Wiki
12%
Formal & Business
3%
Reference
0%
Ludwig's WRAP-UP
The phrase "contain as" appears frequently across various sources, yet its grammatical correctness is often questionable. Ludwig AI indicates that it is not a standard English construction and may require rephrasing for clarity. Although commonly used, especially in News & Media and Science contexts, substituting "contain as" with verbs like "include", "comprise", or "hold" often leads to clearer and more grammatically sound sentences. When using "contain as", examine the sentence carefully to ensure accurate and effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
consist of
Indicates the elements or parts that make up something, which changes the structure and places emphasis on the components.
be composed of
Similar to "consist of", but suggests a formal arrangement or structure, which means altering the structure and highlighting a formal arrangement.
include within
Focuses on the action of including something inside something else, modifying the structure and offering more emphasis on the act of including.
incorporate into
Focuses on the integration of something into a larger whole, which results in a structural transformation and emphasizes integration rather than simple containment.
comprise within
Indicates composition within a larger entity, changing the structure and stressing the components of something.
hold inside
Emphasizes the physical act of holding something, altering the structural emphasis and suggesting physical containment.
encompass as
Suggests a broader inclusion or coverage, offering a structural shift and emphasizing comprehensive inclusion.
accommodate inside
Highlights the ability to hold or contain something comfortably, which changes the emphasis and signifies the capacity to hold.
house within
Implies providing a place or structure for something, which alters the structure and indicates providing shelter or storage.
feature as part of
Focuses on something being a prominent element or aspect, and that involves a shift in structure and an emphasis on highlighting a specific feature.
FAQs
How can I rephrase sentences that use "contain as" for better clarity?
Instead of "contain as", consider using more direct verbs such as "include", "comprise", or "hold", depending on the specific context. For example, instead of "The report will contain as many details as possible", you could say "The report will "include as many details as possible"".
What are some common alternatives to "contain as" in formal writing?
In formal writing, alternatives to "contain as" include "consist of", "be composed of", or "incorporate". These options often provide a more precise and professional tone. For example, use "The alloy is composed of several metals" instead of "The alloy will contain as several metals".
Is "contain as" grammatically correct in all contexts?
While "contain as" appears in various texts, it is often grammatically questionable and can lead to awkward phrasing. Ensure that the sentence is clear and grammatically sound by considering alternative phrasings.
Which phrase is more accurate, "contain as" or "contain"?
In most contexts, "contain" is more grammatically accurate and concise than "contain as". Using "contain" directly avoids unnecessary words and potential confusion. For example, "The box "contains" books" is clearer than "The box contain as books".
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
80%
Authority and reliability
2.8/5
Expert rating
Real-world application tested