portion of which

USAGE SUMMARY

The phrase "portion of which" is correct and usable in written English.
It can be used to refer to a specific part of something previously mentioned, often in formal or academic writing. Example: "The report included several sections, a portion of which focused on environmental impacts."

✓ Grammatically correct

News & Media

Academia

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"It remains an unfinished site, the underground portion of which is an extensive, empty tunnel complex".

The New York Times

Electrical production is mostly hydro-generated, a portion of which is imported.

Britannica

Free; $10 suggested donation, a portion of which goes to help New Haven's homeless.

Yale University

a portion of which is dedicated for funding charter school facilities.

Cornell University

Based on that traffic, the organizers secure advertising sponsorships from corporate partners, a portion of which goes to charities.

The New York Times

It was a national Sunday title with a long history, a goodly portion of which was anything but unsavoury.

The Guardian

The house is reached via a half-mile driveway, a portion of which is made of crushed clamshells.

The New York Times

Afghanistan is by far the world's biggest producer of opiates, a considerable portion of which end up in Iran.

The New York Times - Magazine

Its notable features include Yellowstone Lake, the northern portion of which is located in the caldera's southeastern area.

Britannica

Sometime during that process the hollow was partially filled with water a portion of which came from the Syr Darya.

Britannica

§ 107(2), a very substantial portion of which was appropriated in the defendants' work, 17 U.S.C.

Harvard University

Expert writing Tips

Best practice

Use "portion of which" when you want to add a level of formality or precision to your writing. It is particularly useful in academic papers, legal documents, or formal reports where clarity and accuracy are paramount.

Common error

Avoid using "portion of which" in casual conversations or informal writing. Opt for simpler alternatives like "part of which" or "some of which" to maintain a natural and approachable tone.

Linguistic Context

The phrase "portion of which" functions as a prepositional phrase introducing a relative clause. It specifies a particular part or amount of something previously mentioned, adding detail and precision to the statement. Ludwig AI confirms its correct usage.

Expression frequency: Very common

Frequent in

News & Media

35%

Academia

25%

Encyclopedias

15%

Less common in

Formal & Business

10%

Science

5%

Wiki

5%

Ludwig's WRAP-UP

In summary, "portion of which" is a grammatically sound phrase used to specify a part of something previously mentioned. Ludwig AI confirms it is correct and usable. While frequently found in formal contexts like news, academia, and encyclopedias, it's crucial to consider the tone of your writing and opt for simpler alternatives in casual settings. Remember, while similar to "part of which", "portion of which" adds a layer of formality. Understanding these subtle differences will help you use the phrase effectively and appropriately in your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

part of which

A more common and slightly less formal alternative.

segment of which

Implies a more distinct or defined part.

share of which

Emphasizes the idea of a division or allocation.

some of which

A less specific and more general alternative.

fraction of which

Indicates a smaller or less significant part.

percentage of which

Refers to a specific numerical proportion.

aspect of which

Highlights a particular feature or element.

element of which

Focuses on a basic or essential component.

component of which

Similar to "element of which" but slightly more technical.

piece of which

Suggests a tangible or physical part.

FAQs

How can I use "portion of which" in a sentence?

The phrase "portion of which" is typically used to specify a part of something previously mentioned. For example: "The report included several sections, a "portion of which" focused on environmental impacts."

What are some alternatives to "portion of which"?

You can use alternatives like "part of which", "some of which", or "segment of which" depending on the context.

When is it appropriate to use "portion of which"?

It is appropriate in formal or academic writing where precise and sophisticated language is desired. In informal contexts, simpler alternatives are usually preferred.

Is "portion of which" interchangeable with "part of which"?

While similar, "portion of which" carries a slightly more formal tone than "part of which". The choice depends on the desired level of formality in your writing.