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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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reduced by

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "reduced by" is correct and used in written English.
It is used to indicate a decrease in something usually when comparing it with a previous amount. For example, "Last year's profits were reduced by 25%".

✓ Grammatically correct

News & Media

Academia

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Reduced by R. Chemin.

The Nama were reduced by two-fifths.

Boil until reduced by half.

Simmer until reduced by half.

* Foreign Office budget reduced by 8 per cent.

News & Media

Independent

Cook until wine is reduced by half.

Camden will see funding reduced by 6.54%.

News & Media

The Guardian

Boil until liquid is reduced by half.

Boil until reduced by a third.

News & Media

The New York Times

Simmer until reduced by half, stirring occasionally.

Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

Gently boil until reduced by half.

Expert writing Tips

Best practice

When describing proportions or percentages, always specify the unit of measurement (e.g., "reduced by 20%", not just "reduced by 20").

Common error

Avoid using "reduced by" with uncountable nouns that don't quantify discrete amounts. For example, instead of saying "happiness was reduced by the news", say "happiness was diminished by the news".

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 "reduced by" functions as a prepositional phrase indicating the amount or extent of a decrease. It modifies a noun or noun phrase, specifying by how much something has been lessened. As confirmed by Ludwig, the phrase is grammatically sound and commonly used.

Expression frequency: Very common

Frequent in

News & Media

48%

Academia

24%

Formal & Business

10%

Less common in

Science

9%

Wiki

6%

Encyclopedias

3%

Ludwig's WRAP-UP

The phrase "reduced by" is a common and grammatically correct way to indicate a decrease in quantity or amount, as confirmed by Ludwig. It functions as a prepositional phrase, specifying the extent of the reduction. It's versatile and appears across various contexts, from news and media to academic writing, though more frequently in news, academic and business domains. When using "reduced by", ensure you quantify the reduction with a specific unit and avoid using it with uncountable nouns. Consider alternatives like "decreased by" or "lessened by" for subtle differences in meaning. Remember to be precise and contextual in your usage.

FAQs

How do I use "reduced by" in a sentence?

Use "reduced by" to show a decrease in quantity or amount. For example, "The price was "reduced by" 10%", or "Staff numbers were "reduced by" 342".

What's the difference between "reduced by" and "decreased by"?

While both indicate a lessening, "reduced by" often implies an active effort to diminish something, while "decreased by" is a more neutral observation of a decline.

Is it correct to say "The error was reduced by implementing the fix"?

Yes, that's correct. It implies that the implementation of the fix caused a decrease in the error, indicating a successful reduction in the error's occurrence or impact.

What can I say instead of "reduced by"?

You can use alternatives like "lessened by", "diminished by", or "cut by" depending on the context.

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Most frequent sentences: