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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
declines by one
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "declines by one" is correct and usable in written English.
It can be used in contexts where you are describing a decrease in quantity or value, specifically indicating that the amount is reduced by one unit. Example: "The number of participants in the study declines by one each week as some individuals drop out."
✓ Grammatically correct
Health and Quality of Life Outcomes
The New York Times
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UNICEF
Encyclopedia Britannica
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Global health, science and practice
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
Each row has a value of 25 for t and a declining value for x, where the value of x declines by one year between each row.
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
The cost of maintaining American military forces in Iraq and Afghanistan could total $50 billion in 2005 alone, even if the number of troops there declines by one-third.
News & Media
Average SAT scores in reading and writing declined by one point this year, while math scores held steady, according to a report on the high school class of 2009 released Tuesday by the College Board.
News & Media
But the number of students at grade level declined by one percentage point from last year.
News & Media
According to the Internet measurement firm Nielsen/NetRatings, traffic to KaZaA declined by one million unique visitors the week ended July 6, after the announcement by the Recording Industry Association of America.
News & Media
Despite the demands of mission in Afghanistan - the first 'hot' ground war fought in NATO history - total European defense spending declined, by one estimate, by nearly 15percentt in the decade following 9/11.
News & Media
It is the growth rate of the annual average gross domestic product -- currently 8percentt -- that is likely to decline by one percentage point, not the annual average gross domestic product itself.
News & Media
Online sales during Thanksgiving weekend broke all previous records, garnering more than five billion dollars (up eighteen per cent from last year), according to Adobe data cited in a Bloomberg article, while sales at brick-and-mortar retail stores declined by one per cent.
News & Media
Online sales during Thanksgiving weekend broke all previous records, garnering more than five billion dollars (up eighteen per cent from last year), according to Adobe data cited in a Bloomberg article, while sales at brick-and-mortar retail stores declined by one per cent.
News & Media
The research says that Japan's population will keep declining by one million people every year in coming decades.
News & Media
The number of heavy smog days declined by one to 46 days.
News & Media
Expert writing Tips
Best practice
Use "declines by one" when you need to clearly and concisely express a reduction of exactly one unit, especially in statistical or numerical contexts.
Common error
Avoid using "declines by one" when referring to percentage decreases. Instead, specify "declines by one percentage point" or use appropriate percentage notation (e.g., declines by 1%).
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "declines by one" functions as a descriptive term, specifically indicating a reduction in quantity by a single unit. Ludwig AI confirms its grammatical correctness.
Frequent in
News & Media
30%
Science
30%
Formal & Business
15%
Less common in
Academia
10%
Encyclopedias
10%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "declines by one" is a grammatically sound and frequently used expression to denote a specific decrease of one unit. As per Ludwig AI, its correctness is confirmed, making it suitable for various contexts, particularly those requiring accuracy in quantitative descriptions. While very common in news, science and formal business settings, it can also appear in academic and encyclopedic content. Remember to avoid using it when describing percentage decreases. For alternative phrasing, consider options like "decreases by one" or "falls by one", depending on the level of formality desired.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Decreases by one
Replaces "declines" with the synonym "decreases", maintaining the same grammatical structure.
Reduces by one
Substitutes "declines" with "reduces", keeping the meaning virtually identical.
Falls by one
Uses "falls" instead of "declines", providing a slightly more informal tone.
Drops by one
Employs "drops" as a substitute for "declines", offering a more casual alternative.
Is reduced by one
Changes the structure to passive voice while preserving the core meaning.
Goes down by one
Offers a more conversational way to express the same concept.
Lessens by one
Replaces "declines" with "lessens", indicating a reduction in amount.
Diminishes by one
Uses "diminishes" for a more formal and emphatic reduction.
The decrease is one
Restructures the sentence to emphasize the amount of decrease.
Experiences a reduction of one
Provides a more formal and detailed way of stating the decrease.
FAQs
How can I use "declines by one" in a sentence?
You can use "declines by one" to indicate a decrease of exactly one unit. For example: "The number of errors "declines by one" each day."
What are some alternatives to "declines by one"?
Some alternatives include "decreases by one", "reduces by one", or "falls by one", depending on the context.
Is it correct to say "declines of one" instead of "declines by one"?
While "declines of one" might be understood, ""declines by one"" is the more standard and grammatically correct way to express a reduction of one unit.
When should I use "declines by one" versus "declines by a small amount"?
Use ""declines by one"" when you want to specify a precise decrease of one unit. Use "declines by a small amount" when the decrease is not precisely quantified or is relatively insignificant.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested