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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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functions as

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "functions as" is correct and commonly used in written English.
It is typically used to describe the purpose or role of something in a sentence. Here is an example: "The main clause in a sentence functions as the backbone, providing the main idea and structure for the entire sentence."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Wiki

Academia

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Those are all critical functions as well.

News & Media

The New York Times

The cameras have real-time functions as well.

This is true for most other corporate functions as well.

Nonetheless, the urban core still functions as per usual.

News & Media

Huffington Post

TGFβ has numerous other functions as well.

Science

Plosone

Avoid social functions as necessary.

Set your two functions as equal.

Scaffolding functions as temporary loggia.

News & Media

The New York Times

A fourth building functions as servants' quarters.

News & Media

The New York Times

The network functions as a time bank.

News & Media

The New York Times

The business functions as an oligopoly.

News & Media

The Economist
Show more...

Expert writing Tips

Best practice

Use "functions as" to clearly define the role or purpose of something, ensuring the reader understands its specific function within a given context.

Common error

Avoid using "functions as" when a simpler verb like "is" or "acts" would suffice. Overusing the phrase can make your writing sound unnecessarily complex. For example, instead of saying "This button functions as the power switch", consider "This button is the power switch".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "functions as" primarily acts as a predicate in sentences, describing the role, purpose, or operation of a subject. Ludwig AI confirms this through numerous examples, showing its versatile usage across various contexts.

Expression frequency: Very common

Frequent in

News & Media

35%

Science

20%

Encyclopedias

15%

Less common in

Wiki

10%

Academia

10%

Formal & Business

10%

Ludwig's WRAP-UP

In summary, the phrase "functions as" is a versatile and commonly used expression for defining the role or purpose of something. As Ludwig AI confirms, it appears frequently across diverse contexts, including News & Media, Science, and Encyclopedias. While grammatically correct and widely accepted, it's important to avoid overuse in simple descriptions. Alternatives like "serves as" or "acts as" can offer more nuanced expressions. Understanding its proper usage ensures clarity and precision in writing.

FAQs

How can I use "functions as" in a sentence?

Use "functions as" to describe the role, purpose, or operation of something. For instance, "The heart "functions as" a pump" explains the heart's role in the body.

What are some alternatives to "functions as"?

You can use phrases like "serves as", "acts as", or "operates as" to convey a similar meaning, depending on the specific context.

Is it better to say "functions as" or "is used as"?

"Functions as" implies a natural or designed purpose, while "is used as" suggests a chosen or adapted role. The best choice depends on whether the role is inherent or assigned.

What's the difference between "functions as" and "serves as"?

While both are similar, ""functions as"" describes a general role or ability, and "serves as" often implies a more direct or intentional action. For example, "This room functions as a library" versus "This room serves as a meeting space".

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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: