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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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have a function

Grammar usage guide and real-world examples

USAGE SUMMARY

"have a function" is a correct and commonly used phrase in written English.
It means that something has a specific purpose or role. Example: "The liver is an essential organ in the human body because it has the function of detoxifying harmful substances."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"Artists have a function.

"Big banks have a function in society".

News & Media

The New York Times

But do anxiety dreams have a function?

Specialized pro-resolving lipid mediators have a function in pain32.

Science & Research

Nature

That means we have a function, A for analog.

Let's just integrate, except you don't have a function.

One is that every design exercise must have a function.

"They have a function that continues to contribute to the quality and structure of group life".

News & Media

The Guardian

You need to have a function, you need to send a sound for making people think".

Labor Day parades still have a function, partly nostalgic, partly motivational.

Yes, books have a function that can be partially supplanted by a little device.

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Expert writing Tips

Best practice

When discussing the roles of different components within a system, use "have a function" to clearly indicate each component's contribution to the overall operation. This helps in providing a structured and understandable explanation.

Common error

Don't use "have a function" when a simpler verb like "is" or "serves" would suffice. Overusing the phrase can make your writing sound unnecessarily complex. For example, instead of "This button has a function to turn on the device", try "This button turns on the device".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "have a function" primarily serves as a declarative statement to indicate that something possesses a specific purpose or role. Ludwig examples show it being used across diverse fields, to point out a pre-defined functionality.

Expression frequency: Very common

Frequent in

Science

42%

News & Media

35%

Academia

23%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "have a function" is a common and grammatically correct way to express that something has a specific purpose or role. As Ludwig AI confirms, it is widely used across diverse fields such as science, news, and academia, indicating its versatility and broad applicability. While simpler alternatives like "serves a purpose" or "fulfills a role" exist, "have a function" provides a clear and direct way to define an entity's utility. The examples illustrate that while it can be used in multiple contexts, it is primarily seen in science-related content. Therefore, when precision and clarity are needed to define roles, opting for "have a function" is a solid choice.

FAQs

How can I use "have a function" in a sentence?

Use "have a function" to describe the specific purpose or role of something. For example, "The immune system "has a function" of defending the body against infections".

What's a simpler way to say "have a function"?

You can use phrases like "serves a purpose", "fulfills a role", or "is used for" as simpler alternatives to "have a function".

Is it better to say "has a function" or "serves a function"?

Both "has a function" and "serves a function" are grammatically correct, but "serves a function" often implies a more active or intentional role, while "has a function" is a more general statement of purpose.

When is it appropriate to use "have a function" in writing?

It's appropriate to use "have a function" when you want to clearly define the role or purpose of something, especially in technical, scientific, or explanatory contexts. It emphasizes that the item or process has a specific and intended use.

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: