Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
diminished by one
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "diminished by one" is correct and usable in written English.
It can be used in contexts where you want to indicate a reduction or decrease in quantity, specifically by one unit. Example: "The total number of participants was diminished by one due to a last-minute cancellation."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
7 human-written examples
His count of enchanted objects had diminished by one".
News & Media
Biases are reinforced or diminished by one's background, like cultural roots, personal experience and environmental aspects.
News & Media
In the presence of penicillin, two of these five knockouts (Δ spr0084 and Δ spr0175) showed no reduction in OD620 and survival was only diminished by one order of magnitude (strongly defective autolysis); the remaining three (Δ spr1268, Δspr 0930 and Δspr 0991) showed ~2-fold reductions in OD620 and reduction of three orders of magnitude in survival (partially defective autolysis).
Science
The frequency for larger earthquakes therefore increases by a factor of about 10 when the magnitude is diminished by one unit.
Encyclopedias
At that moment your inventory of ready-made-always-available-in-a-pinch targets would be diminished by one, and since the list is never really that long, the loss of one would be serious.
News & Media
Middle Tennessee won by a whopping five games after going 19-1 in conference, with its only loss coming in overtime — and yet its hopes of going to the N.C.A.A. tournament were significantly diminished by one bad outing.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
Some artists are diminished by one-person shows; Bronzino has gained and so have we.
News & Media
Differences between groups were diminished by one-half after 4 years (−0.88% vs. −0.05% per year in ILI and DSE, respectively) but remained significant (P < 0.01).
Science
Insofar as I regard these sequels as rat-bottom awful and can see them as nothing else, I lose out, diminish by one my count of blisses.
News & Media
At the level of the blocks in the stepped wedge design, an effect might not be detectable with statistical significance after two screening rounds, unless the prevalence diminishes by one-third or more.
Science
When we excluded School MS302, a school farther from a highway (1,216 feet), from the PEF model with personal EC, the marginal significance of the EC pollution increased to p = 0.43, although the effect estimate remained consistently negative, diminishing by one-third.
Expert writing Tips
Best practice
Use "diminished by one" when you want to precisely indicate a reduction of exactly one unit, especially in formal writing or scientific contexts. For example, "The sample size was diminished by one due to a participant withdrawing from the study."
Common error
While "diminished by one" is grammatically correct, it can sound overly formal in casual conversation. In informal settings, consider using simpler alternatives like "one less" or "reduced by one".
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "diminished by one" functions as a descriptive modifier, indicating a specific quantitative reduction. It describes the extent to which something has been reduced. As Ludwig AI confirms, the expression is suitable and grammatically valid.
Frequent in
News & Media
30%
Science
30%
Encyclopedias
10%
Less common in
Formal & Business
0%
Reference
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "diminished by one" is a grammatically sound way to express a reduction by a single unit, confirmed by Ludwig AI. While versatile, it leans towards formal contexts where precision is key. Alternatives such as "reduced by one" or "one less" may be more suitable for informal settings. Its presence in news, scientific articles and encyclopedias highlights its utility in conveying precise quantitative information. While not extremely common, it's a useful addition to one's vocabulary for accurate communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
reduced by one
Changes the verb "diminished" to "reduced", maintaining the same meaning of lessening by a single unit.
decreased by one
Substitutes "diminished" with "decreased", offering a synonym that also signifies a reduction of one.
lessened by one
Replaces "diminished" with "lessened", emphasizing a reduction in quantity or degree.
shrunk by one
Uses "shrunk" instead of "diminished", suggesting a decrease in size or extent by a single unit.
declined by one
Employs "declined" to indicate a reduction or decrease in number or amount by one.
fallen by one
Uses "fallen" to describe a decrease in value or quantity by one.
dropped by one
Replaces "diminished" with "dropped", indicating a sudden or noticeable decrease by one.
reduced by a single unit
Expands the phrase to specify "a single unit", providing additional clarity.
one less
Offers a shorter, more informal way to express the concept of being reduced by one.
taken away one
Uses "taken away" to describe the subtraction of one unit.
FAQs
What does "diminished by one" mean?
The phrase "diminished by one" means that something has been reduced or decreased in quantity by exactly one unit.
When is it appropriate to use "diminished by one"?
It's appropriate to use "diminished by one" in formal or technical contexts where precise language is important. Simpler phrases might be preferred in casual settings.
What are some alternatives to saying "diminished by one"?
Alternatives include phrases like "reduced by one", "decreased by one", or simply "one less", depending on the context.
Is "diminished by one" the same as "decreased by one"?
Yes, "diminished by one" and "decreased by one" are essentially synonymous, both indicating a reduction in quantity by a single unit. The choice between them often depends on stylistic preference or the specific context.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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