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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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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not applicable

Grammar usage guide and real-world examples

USAGE SUMMARY

"not applicable" is correct and usable in written English.
You can use it when something is irrelevant, or does not apply to a particular scenario or situation. Example sentence: "The rules for this tournament do not apply to participants under the age of 18; therefore, the age restriction is not applicable."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

54 human-written examples

Not applicable.

News & Media

The Guardian

Data are not applicable.

News & Media

The New York Times

N/A, not applicable.

Science & Research

Nature

N/A = not applicable.

Science & Research

Nature

That stands for not applicable.

Intervention: Not applicable.

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Human-verified similar examples from authoritative sources

Similar Expressions

6 human-written examples

Not applicable--literature review.

- = not mentioned/not applicable.

INTERVENTIONS Not applicable.

Not applicable/Nil.

(Yes/No/Not Applicable).

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Expert writing Tips

Best practice

Use "not applicable" in forms, surveys, or tables when a question or field does not relate to a specific respondent or situation, ensuring data accuracy and clarity.

Common error

Avoid using "not applicable" when a more descriptive response is possible. For instance, instead of marking a field as "not applicable", consider using "unknown" or "not available" if the information is genuinely missing or unascertainable.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "not applicable" functions as an adjective phrase modifying an implied noun (e.g., "this rule is not applicable"). It indicates that something is irrelevant or does not apply in a given context. As Ludwig AI explains, it signals that a particular condition, rule, or requirement is not pertinent to the situation at hand.

Expression frequency: Very common

Frequent in

Science

65%

News & Media

15%

Academia

10%

Less common in

Formal & Business

5%

Wiki

3%

Encyclopedias

2%

Ludwig's WRAP-UP

In summary, the phrase "not applicable" is a common and grammatically correct expression used to indicate that something is irrelevant or does not apply in a particular situation. As Ludwig AI confirms, its primary function is to provide clarity by signaling the irrelevance of a condition or requirement. It's most frequently found in formal and scientific contexts, though it's understood across various domains. When writing, it's best practice to use "not applicable" to ensure accuracy and transparency, especially in forms and surveys, but avoid overuse when more specific terms like "not available" or "unknown" could be more appropriate.

FAQs

How is "not applicable" abbreviated?

Common abbreviations for "not applicable" include "N/A" and "NA". Both are widely understood and can be used interchangeably depending on the context.

When should I use "not applicable" on a form?

Use "not applicable" when a question or field does not pertain to you or the situation. This clarifies that you are not skipping the question, but rather that it is irrelevant to your circumstances.

What's the difference between "not applicable" and "no answer"?

"Not applicable" indicates that the question is irrelevant, whereas "no answer" suggests the question is relevant, but the respondent is unable or unwilling to provide a response. Choose "not available" if you are missing the answer to the question.

Is it better to leave a field blank or write "not applicable"?

Writing "not applicable" is generally preferred to leaving a field blank, as it explicitly communicates that the question was considered and deemed irrelevant, rather than being overlooked.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: