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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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a reduction by

Grammar usage guide and real-world examples

USAGE SUMMARY

"a reduction by" is a perfectly valid and grammatically correct phrase to use in written English.
One example of its use might be, "The company offered a reduction by 20% for early payment."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

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

News & Media

The Guardian

WHITE STAR PROFITS CUT TO 30 PER CENT.; Effect of Titanic Disaster on the Company's Dividend a Reduction by Half.

News & Media

The New York Times

It is a reduction by one third, and even compared to four years ago it is a sharp decrease," she said.

News & Media

The Guardian

The budgets put the government of the day on target to meet a reduction, by 2050, of 80% of carbon emissions compared to the 1990 levels.

News & Media

The Guardian

There has been substantial progress in reducing child mortality over the past 15 years, but not enough to achieve the goal of a reduction by two-thirds.

News & Media

The Guardian

The new budget puts the government on target to meet a reduction by 2050 of 80% of carbon emissions compared with 1990 levels.

News & Media

The Guardian

At a meeting at headquarters here, OPEC members agreed to meet again on July 3 to consider increasing output if a reduction by Iraq led to steeper prices.

News & Media

The New York Times

In this case, Mr. Brown said, the cuts would probably mean a reduction by three weeks of the school year.

News & Media

The New York Times

But Mr Hu did not offer hard numbers either, only promising a reduction by a "notable amount".

News & Media

The Economist

Archives|WHITE STAR PROFITS CUT TO 30 PER CENT.; Effect of Titanic Disaster on the Company's Dividend a Reduction by Half.

News & Media

The New York Times

This reduction requires adapting the etching parameters; however, previous measurements indicate that a reduction by an order of magnitude is realistic7.

Science & Research

Nature
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Expert writing Tips

Best practice

When quantifying a reduction, ensure the units are clearly stated (e.g., percentage, amount, factor) to avoid ambiguity.

Common error

Be specific about what is being reduced. Instead of just stating "a reduction by", clarify the specific area or quantity affected by the reduction.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a reduction by" primarily functions as a prepositional phrase that modifies a noun, specifying the extent or amount of something being reduced. Ludwig AI confirms its validity and widespread use across various contexts.

Expression frequency: Very common

Frequent in

Science

46%

News & Media

38%

Formal & Business

8%

Less common in

Academia

2%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "a reduction by" is a grammatically correct and frequently used phrase to indicate the extent of a decrease. Ludwig AI's analysis highlights its prevalence in scientific and news contexts, suggesting a formal or neutral register. When using this phrase, ensure that you specify what is being reduced and by how much to maintain clarity and precision. Alternatives like ""a decrease of"" or ""a decline in"" can be used depending on the context, but "a reduction by" remains a direct and widely accepted option.

FAQs

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

You can use "a reduction by" to describe a decrease in a specific quantity or value. For example, "The company announced "a reduction by" 10% in its workforce".

What's a good alternative to "a reduction by"?

Alternatives to "a reduction by" include "a decrease of", "a decline in", or "a cut in", depending on the context.

Is it correct to say "reduction of" instead of "a reduction by"?

While "reduction of" is grammatically correct, it has a slightly different meaning. "Reduction of" generally refers to the act or process of reducing, whereas ""a reduction by"" specifies the amount of the decrease.

How do I quantify "a reduction by"?

To quantify ""a reduction by"", specify the numerical value or percentage of the decrease. For example, "There was "a reduction by" half" or ""a reduction by" 25%".

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Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: