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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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that which

Grammar usage guide and real-world examples

USAGE SUMMARY

"that which" is correct and can be used in written English.
You can use it when introducing a clause that provides further information about a subject. For example: "He is a man of honor, that which I admire most about him."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"Worse than that which existed in South Africa".

News & Media

The New York Times

Tattvartha Sutra: That Which Is.

To that which was first charged, or to that which was first committed?

She [Sarah] blasted that, which was good.

"It's things like that which undermine Michelin".

That Which Does Not Kill You.

Science & Research

Science Magazine

That which was special becomes that which is routine.

News & Media

Forbes

That which is common unites.

Notice that, which implies (2.29).

That which is scheduled gets done.

News & Media

Forbes

It follows that, which further implies that.

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Expert writing Tips

Best practice

Vary your sentence structure by occasionally using "that which" instead of simpler alternatives like "what" or "that" to enhance readability and stylistic flair.

Common error

Avoid using "that which" excessively in casual conversation or informal writing. Overusing this phrase can make your language sound stilted or pretentious. Simpler alternatives are often more appropriate.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "that which" functions as a relative pronoun, introducing a relative clause that modifies a noun or pronoun in the main clause. Ludwig AI indicates this construction is grammatically correct and widely used.

Expression frequency: Very common

Frequent in

News & Media

37%

Science

35%

Academia

20%

Less common in

Encyclopedias

5%

Formal & Business

3%

Reference

0%

Ludwig's WRAP-UP

In summary, "that which" is a grammatically correct and frequently used phrase that functions as a relative pronoun, introducing a clause to provide further information about a preceding noun. Ludwig AI confirms its validity and widespread usage. While it can add a formal tone to writing, overuse in informal contexts should be avoided. Alternatives like "what" or "that" may be more appropriate in casual settings. Common in News & Media, Science, and Academia, "that which" can be a valuable tool for precise and nuanced communication.

FAQs

How can I use "that which" in a sentence?

Use "that which" to introduce a clause that provides further information or clarification about something previously mentioned. For instance, "He valued integrity, "that which" guided his decisions."

What phrases are similar to "that which"?

Similar phrases include "what", "that", and "the thing that". The choice depends on the desired level of formality and clarity.

Is it always appropriate to use "that which" in writing?

While grammatically correct, "that which" is more formal. In informal contexts, simpler alternatives like "what" or "that" are often preferred for a more natural tone.

What's the difference between "that which" and "what"?

"That which" and "what" can often be used interchangeably, but "that which" carries a more formal tone. "What" is generally more common in everyday language.

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Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: