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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
a data
Grammar usage guide and real-world examplesUSAGE SUMMARY
"a data" is a correct and usable part of a sentence in written English.
You can use it when you are referring to a single piece of information or a set of information. For example, "We must analyze this data carefully before making any decisions."
News & Media
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
51 human-written examples
It's a data guzzler.
News & Media
I'm just a data guy.
News & Media
Is Twitter a "data controller"?
News & Media
It could a data center.
News & Media
A bit bucket is a data sink.
News & Media
Crowdsourcing can be a data source.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
It's a data-driven decision.
News & Media
This is a data-driven industry.
News & Media
"Oh, yes, he's a data-mining person.
News & Media
He developed a data-driven approach.
News & Media
It's a data-hungry approach.
News & Media
Expert writing Tips
Best practice
When using "a data", ensure the context clearly implies a singular instance or a specific type of data, and consider rephrasing for improved grammatical clarity.
Common error
Avoid using "a data" when referring to data in general; data is often considered a mass noun and doesn't typically take the indefinite article "a". Instead, use "some data" or rephrase to refer to "a piece of data".
Source & Trust
80%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a data" primarily functions as a noun phrase, often acting as a subject or object within a sentence. While Ludwig indicates it is acceptable, it's important to note it might be seen as grammatically questionable since data is often considered plural. Its function depends heavily on the context.
Frequent in
News & Media
37%
Science
33%
Wiki
13%
Less common in
Formal & Business
7%
Academia
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "a data" is used to refer to a single instance or specific type of data. While Ludwig deems it usable, its grammatical correctness is often debated, as "data" is frequently treated as a mass noun. It appears across various contexts, including news, science, and wiki sources. Alternatives like "a piece of data" or "some data" may offer improved clarity and grammatical precision. Be mindful of your audience and context when using this phrase.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
some data
This alternative suggests an unspecified quantity of data.
certain data
This alternative emphasizes that the data in question is specific and identified.
specific data
This alternative highlights the detailed and particular nature of the data.
piece of data
This alternative clarifies that the item is a single instance within a larger dataset.
element of data
This alternative views the data as a component within a structured system.
data point
This alternative is typically used to describe a single, quantifiable piece of information.
item of data
This alternative stresses that the information in question is one part of many.
instance of data
This alternative denotes a specific occurrence within a dataset.
form of data
This alternative suggests that data is being presented in a particular structure.
type of data
This alternative refers to the categorization or classification of information.
FAQs
How can I use the phrase "a data" correctly in a sentence?
While the phrase "a data" is not always grammatically correct, it can be used when referring to a specific instance or type of data. Consider using phrases like "a piece of data" or "a specific data point" for better clarity.
What are some alternatives to using "a data" in my writing?
Depending on the context, you can use alternatives such as "some data", "certain data", or "specific data". These alternatives often provide more clarity and grammatical correctness.
Is it grammatically correct to use "a data" in formal writing?
In formal writing, it's generally advisable to avoid "a data" because "data" is often treated as a mass noun. Instead, opt for phrases like "a set of data" or "a collection of data" to maintain grammatical precision.
What's the difference between using "a data" and "some data"?
Using "a data" suggests you're referring to a single, specific data point or a particular type of data. "Some data", on the other hand, refers to an unspecified quantity of information without emphasizing singularity or specificity.
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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
80%
Authority and reliability
3.5/5
Expert rating
Real-world application tested