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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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reduction by

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "reduction by" is correct and usable in written English.
You can use it when you want to explain a decrease or a decrease in size of something. For example, "The new policy led to a reduction by 30% in the number of car accidents."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

"That's a reduction by two thirds to three quarters.

News & Media

The Guardian

I've asked for the same reduction by citizens and businesses.

News & Media

The New York Times

Many crime experts believe that a global reduction by 50% in 30 years is entirely feasible.

This would be the biggest ever reduction by the producer group.

Compared with 2005 emissions the current 20% target is only a 13% reduction by 2020.

News & Media

The Guardian

He plans to achieve that reduction by investing the interest income in other ventures.

News & Media

The New York Times

Both bills include a long-term target of an 83percentt reduction by 2050.

News & Media

The New York Times

This will represent a 21% reduction by 2020 in emissions for all sectors in Europe covered, compared with 2005 levels.

News & Media

The Guardian

At the current speed, the country will have few problems reaching its ambitious target of an 80% reduction by 2050.

News & Media

The Guardian

For this reason, we are backing a "10 by 10" goal – a 10% emissions reduction by the end of 2010.

The House and Senate bills both include a long-term target of an 83 percent reduction by 2050.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

When using "reduction by", clearly specify what is being reduced and the factor causing the reduction to ensure clarity and avoid ambiguity.

Common error

Avoid using "reduction by" without specifying the magnitude or the entity responsible for the reduction. For example, instead of saying "There was a reduction by new policies," specify "There was a 20% reduction by the new policies."

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "reduction by" functions as a prepositional phrase, indicating a decrease or diminution caused or influenced by a specific agent or method. As Ludwig AI confirms, it is used to show causality in reduction.

Expression frequency: Very common

Frequent in

News & Media

38%

Science

31%

Formal & Business

10%

Less common in

Encyclopedias

2%

Wiki

2%

Reference

0%

Ludwig's WRAP-UP

The phrase "reduction by" is a grammatically sound and frequently employed prepositional phrase that indicates a decrease caused by a specific agent or method. Ludwig AI validates its correct usage, emphasizing its role in demonstrating causality. Commonly found in news, scientific, and business contexts, "reduction by" serves to explain how a diminution has been achieved, providing essential context and attribution. While alternatives such as "decrease through" or "mitigation through" exist, "reduction by" succinctly conveys a direct link between the decrease and its cause. When using this phrase, ensure clarity by specifying both what is being reduced and the agent responsible for the reduction. Its common usage and grammatical correctness make "reduction by" a reliable choice for precise communication.

FAQs

How can I use "reduction by" in a sentence?

Use "reduction by" to show a decrease caused by a specific factor. For instance, "The company achieved a cost "cost reduction" by streamlining its operations".

What are some alternatives to "reduction by"?

Alternatives include "decrease through", "lessening via", or "mitigation through", depending on the specific context. For example, you might say "decrease through" better captures the process.

Is it better to say "reduction by" or "decrease by"?

Both phrases are grammatically correct, but "reduction by" emphasizes the agent or method causing the decrease. "Decrease by" simply highlights the amount of the reduction. For example, "a "decrease by" 10%" emphasizes magnitude rather than the cause.

What is the difference between "reduction by" and "reduction of"?

"Reduction by" indicates the means or method causing the reduction, while "reduction of" refers to the substance or entity that is being reduced. An example is "reduction of waste" refers to the waste being reduced.

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Authority and reliability

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Real-world application tested

Most frequent sentences: