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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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one thing

Grammar usage guide and real-world examples

USAGE SUMMARY

"one thing" is correct and usable in written English.
You can use it to refer to a single concept or idea. For example: "I know one thing for sure - I will always love you."

✓ Grammatically correct

News & Media

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

One thing–.

News & Media

Forbes

One thing, and one thing only.

News & Media

Independent

One thing I know.

ONE thing seems certain.

News & Media

The Economist

One thing is certain.

News & Media

The New York Times

One thing is sure.

News & Media

The New York Times

One thing — that's all.

News & Media

The New Yorker

One thing that's involved?

News & Media

The New York Times

One thing, he said.

One thing the I.M.F.

News & Media

The New York Times

One thing seems likely.

News & Media

The Economist
Show more...

Expert writing Tips

Best practice

Use "one thing" to clearly introduce a single, specific point or consideration within a broader context. This helps to focus the reader's attention.

Common error

Avoid using "one thing" in very simple sentences where it might sound redundant. Instead, directly state the point without the introductory phrase. For example, instead of "One thing to remember is to bring your passport", simply say "Remember to bring your passport".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "one thing" functions primarily as an introductory phrase. It is used to single out and emphasize a specific aspect, point, or consideration within a broader context. Ludwig AI indicates that it follows standard grammar rules and is widely used. Examples show it frequently introducing a key piece of information or a crucial element.

Expression frequency: Very common

Frequent in

News & Media

62%

Wiki

13%

Science

6%

Less common in

Formal & Business

4%

Reference

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, "one thing" is a grammatically sound and frequently used phrase that functions as an introductory element to emphasize a specific point or idea. Ludwig AI confirms its correctness and broad applicability. Its neutral register allows it to be used in various contexts, most commonly in News & Media. While versatile, overuse in simple sentences should be avoided to prevent redundancy. Alternative phrases such as "a single aspect" or "a particular point" can provide nuanced variations, but the core function remains consistent: to highlight a singular element for attention.

FAQs

How can I use "one thing" in a sentence?

You can use "one thing" to introduce a specific point or idea. For example, "One thing to remember is to always back up your data."

What are some alternatives to saying "one thing"?

Alternatives include phrases like "a single aspect", "a particular point", or "just one item", depending on the context.

Is it grammatically correct to start a sentence with "one thing"?

Yes, it is grammatically correct. Starting a sentence with "one thing" is a common way to introduce a specific idea or consideration.

What's the difference between "one thing" and "the main thing"?

"One thing" introduces a single point, while "the main thing" emphasizes the most important point among several.

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Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: