two to threefold

USAGE SUMMARY

"two to threefold" is a correct and usable phrase in written English.
It is used to indicate an increased amount by two or three times. For example, "The number of workers were increased two to threefold compared to last year."

✓ Grammatically correct

Science

Academia

News & Media

Human-verified examples from authoritative sources

Exact Expressions

20 human-written examples

Two to threefold increased morbidity and mortality rates are reported, especially if generalized tonic clonic seizures (GTCS) occur.

Epilepsy Research

If current trends continue, diabetes prevalence is projected to increase two to threefold by 2050.

Forbes

The resultant transgenic lines produced two to threefold greater concentrations of NA compared to non-transgenic lines.

Rice

Visual cortical surface area varies two- to threefold between human individuals, is highly heritable, and has been correlated with visual acuity and visual perception.

Duke University

Tattooing is associated with two to threefold increased risk of hepatitis C.

Wikipedia

In comparison to LB medium, TB medium supported two to threefold higher glycoside production.

Applied Microbiology and Biotechnology

Human-verified similar examples from authoritative sources

Similar Expressions

40 human-written examples

Only SMBG was associated with two- to threefold increased odds of reaching the A1C goal in all three regions.

Diabetes Care

This effect was markedly enhanced two- to threefold when MBEC4 cells were cocultured with rat astrocytes or C6 glioma cells.

European Journal of Pharmacology

Population-based studies have shown that the risk of heart failure is increased two- to threefold by diabetes [ 4, 5].

Heart Failure Reviews

This contrasts with studies reporting two- to threefold higher rates of depression in teenagers with diabetes [ 12, 24, 32].

Health and Quality of Life Outcomes

Tb.Th in our study yielded two- to threefold higher mean values than the corresponding HR-pQCT measure.

European Radiology

Expert writing Tips

Best practice

When using "two to threefold", ensure the context clearly indicates what is being multiplied. Provide specific units or references to avoid ambiguity.

Common error

Avoid assuming the base value is obvious. Always explicitly state what quantity is increasing "two to threefold" to prevent misinterpretations.

Linguistic Context

The phrase "two to threefold" functions as a quantitative descriptor, indicating a range of multiplication. It modifies a noun to specify an increase within the range of two to three times the original value. Ludwig AI confirms its validity.

Expression frequency: Uncommon

Frequent in

Science

60%

Academia

20%

News & Media

10%

Less common in

Encyclopedias

2%

Wiki

2%

Formal & Business

6%

Ludwig's WRAP-UP

The phrase "two to threefold" is a grammatically correct and usable expression to indicate an increase in quantity. As indicated by Ludwig AI, the phrase is suitable for various contexts but most frequently appears in scientific and academic writing. When utilizing this phrase, ensure that the base value to which it refers is clearly defined, preventing any potential ambiguity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

double to triple

Replaces numerical adjectives with verbs denoting multiplication, changing the structure.

two to three times as much

Specifies the increase as a multiple, adding explicit emphasis on the multiplication factor.

a twofold to threefold increase

Nominalizes the phrase, which emphasizes the increase as a quantity.

between two and three times greater

Emphasizes the range of increase explicitly, which adds a degree of precision.

increasing by a factor of 2-3

Expresses the change using 'factor', a math-related term.

ranging from double to triple

Indicates the increase as a range between two multiples.

growing by 200-300 percent

Converts the increase to a percentage range, which restates the proportion.

from twice to thrice the amount

Uses less common words for two and three times.

multiplying by two or three

Presents the increase as an action, which restructures the sentence.

rising to 200% or 300%

Uses percentages to express an increase, which alters the numerical form.

FAQs

How can I use "two to threefold" in a sentence?

You can use "two to threefold" to describe an increase or multiplication, such as "The company's profits increased "two to threefold" after implementing the new strategy".

What's a more formal way to say "two to threefold"?

For a more formal tone, you might say "increasing by a factor of two to three" or "a "twofold to threefold" increase".

Is it correct to say "two to three times" instead of "two to threefold"?

Yes, "two to three times" is a perfectly acceptable and common alternative to "two to threefold", offering the same meaning with slightly different wording.

Can "two to threefold" apply to decreases as well as increases?

While primarily used for increases, you can adapt it for decreases by stating "decreasing to one half to one third", or more directly, specify the remaining percentage (e.g. "decreasing by 50-66%").