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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
increase by twofold
Grammar usage guide and real-world examplesUSAGE SUMMARY
"increase by twofold" is correct and can be used in written English.
You can use it when referring to something that has increased in quantity or size by twice the original amount. For example: "Sales of our product have increased by twofold since last year."
✓ Grammatically correct
Science
Formal & Business
Critical Care
Alternative expressions(18)
increased by twofold
triple
double
increase twofold
become twice as large
multiply by two
duplicate
increase by double
increase by twice
increase by two
double the increase
twofold increase
exponential increase
double the measure of
twice the amount of
double the quantity of
multiply the measure by two
doubling of something
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
2 human-written examples
Complications observed: H, low platelet; J, ALT increase by twofold; K, BUN increase by twofold; L, AST increase by twofold; M, convulsion.
Science
Data reported in Fig 5C demonstrate that 3 h of CBDCA treatment of MDAH cells was sufficient to increase by twofold the amount of p53 bound to DNA-PK, reinforcing the hypothesis that DNA-PK is at least partially responsible for the basal and platinum-induced p53MUT S15 phosphorylation in HG-EOC cells.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
After ADR injection, the UACR levels were significantly increased by twofold (p < 0.001) in BALB/C mice.
Science
Conversely, both enhanced the magnitude of the AR response in the presence of low levels of androgen (10−11 10−9 M) and this response, increased by twofold, was inhibited by hydroxyflutamide.
A positive effect of pah1 could also be observed for the production of other terpenoids depending on ER-associated enzymes for their biosynthesis, such as the sesquiterpenoid artemisinic acid, which increased by twofold relative to the wild-type strain.
Science
In this analysis, we randomly resampled 1/32 to 1/2 (increasing by twofold) of total reads and using these resampled data sets with smaller size we screened for single-base substitutions using the identical algorithm as used in Table 4. Figure 2 shows true positive and false positive/negative rates as functions of mean coverage.
Science
- The South Sulawesi KHPPIA allocation from provincial government has increased by twofold.
Formal & Business
Between periods 1 and 2, the number of women receiving prepregnancy care increased by twofold (P = 0.01) (Table 1).
Science
However, upon stimulation with E2 and in the absence of fibroblasts, luminal progenitor frequency increased by twofold, but this increase was abrogated by ICI.
Science
Under rich nutritive conditions, we observed that Spiroplasma increased by twofold the number of eggs laid by virgin flies over a 14-day period.
Science
LTR-labeling was significantly reduced in 3-MA-treated OVs by threefold, whereas it was significantly increased by twofold upon MP addition.
Science
Expert writing Tips
Best practice
Use "increase by twofold" when you want to clearly and precisely communicate that something has doubled in quantity or size. It's suitable for technical and formal writing.
Common error
Avoid using "increase by twofold" when you mean to say something has increased to twofold its original amount. The phrase indicates an increase of the original amount, resulting in a final value three times the original, not two.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "increase by twofold" functions as a modifier, typically used to quantify the extent of an increase. Ludwig AI confirms its grammatical correctness and common usage. It specifies that a quantity has grown by 200 percent of its initial value.
Frequent in
Science
70%
Formal & Business
20%
News & Media
10%
Less common in
Encyclopedias
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "increase by twofold" is a grammatically correct and widely used expression to indicate that something has tripled in size or quantity. While Ludwig AI confirms its validity, it's important to remember that the phrase means an increase of 200%, not to 200%. Its formality lends itself to academic, scientific, and business contexts. If you need alternatives, you can consider phrases like "double", "grow by 100 percent", or "multiply by two", always ensuring the substitute fits the intended meaning and register.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
double
A more concise way of saying something becomes twice as large.
increase twofold
Inversion of the original phrase; slightly more formal.
grow by 100 percent
Expresses the increase as a percentage, emphasizing the proportional change.
become twice as large
Describes the end result of the increase, focusing on the final size.
multiply by two
Emphasizes the mathematical operation involved.
increase to twice the amount
Highlights the new quantity relative to the original.
expand by a factor of two
Uses mathematical terminology to specify the magnitude of the increase.
rise by a factor of two
More emphatic, using the word rise.
duplicate
Implies making an exact copy or doubling the original.
amplify twofold
Commonly used in scientific contexts to indicate a significant increase in magnitude.
FAQs
What does "increase by twofold" mean?
To "increase by twofold" means to increase by an amount equal to the original value. So, the new value is three times the original value.
How do I use "increase by twofold" in a sentence?
You can use "increase by twofold" to describe a situation where something has tripled compared to its initial value. For instance: "After the new marketing campaign, sales "increased by twofold"."
Is it correct to say "increased to twofold"?
While similar, "increased to twofold" is different. It means the final value is twice the original, whereas ""increased by twofold"" means the final value is three times the original.
What are some alternatives to "increase by twofold"?
Alternatives include "triple", "increase by 200 percent", or "grow by twofold", depending on the specific context. These options can provide clarity and variety to your writing.
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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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested