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
a substantial proportion
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a substantial proportion" is correct and usable in written English.
It can be used when discussing a significant part or amount of something in a quantitative context. Example: "A substantial proportion of the population supports the new policy, indicating a strong public interest."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
a significant portion
a considerable fraction
a large segment
a significant proportion
a good percentage
a sizable amount
a notable quantity
a major share
a dominant portion
a significant share
a considerable amount
a high proportion
a huge proportion
a solid proportion
a considerable proportion
a sizable proportion
a big proportion
a strong proportion
a tangible proportion
a sufficient proportion
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
60 human-written examples
"This represents a substantial proportion of G.S.K.'s outstanding litigation.
News & Media
Our activist contact estimated that a substantial proportion of Tripoli's population oppose Gaddafi.
News & Media
Nepal relies heavily on India for a substantial proportion of its imports.
News & Media
A profit-driven industry is hardly going to surrender a substantial proportion of what Which?
News & Media
First, she's obliged to put away a substantial proportion of Italy's gastronomic output.
News & Media
A small winery can pour away a substantial proportion of its product in tastings.
News & Media
These fees can claim a substantial proportion of the foundations' revenues.
News & Media
And the polls said a substantial proportion of the public felt sorry for Gordon.
News & Media
Children have been recruited and, according to witnesses, provide a substantial proportion of the armed gangs.
News & Media
"The hereditary nature of a substantial proportion of sarcomas has never been reported before," he added.
News & Media
Currently, higher-rate taxpayers donating to a charity can reclaim a substantial proportion.
News & Media
Expert writing Tips
Best practice
When using "a substantial proportion", ensure that the context clearly defines what constitutes 'substantial' to maintain clarity and avoid ambiguity. It is better to quantify what you mean.
Common error
Avoid using "a substantial proportion" when the actual percentage is quite low. If the amount is less than 20%, consider using terms like "a small proportion" or "a minority" instead.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a substantial proportion" functions as a quantifier, modifying a noun to indicate that a significant amount or percentage is being referred to. Ludwig examples showcase it describing portions of populations, budgets, and even scientific measurements.
Frequent in
Science
35%
News & Media
32%
Formal & Business
10%
Less common in
Wiki
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "a substantial proportion" is a grammatically correct and frequently used expression to describe a considerable amount or percentage of something. According to Ludwig AI, this phrase is suitable for use across various contexts, including news, science, and formal communication. When using this phrase, ensure that 'substantial' is clearly defined within the context. Alternatives include "a significant portion" or "a considerable fraction". Be mindful of overstating the proportion if the actual percentage is low. Remember, clarity and accuracy are key when quantifying information.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a significant portion
Emphasizes the importance or impact of the quantity.
a considerable fraction
Highlights that the quantity is noteworthy.
a large segment
Implies the quantity is a distinct part of a whole.
a good percentage
Uses more common language, focuses on the ratio.
a sizable amount
Indicates that the quantity is physically or conceptually large.
a notable quantity
Suggests the amount is worthy of attention.
a major share
Implies the amount has significant control or influence.
a respectable amount
Indicates the quantity meets a standard or expectation.
a dominant portion
Suggests the quantity has the greatest influence.
a hefty chunk
Informal way to say a large portion
FAQs
How can I use "a substantial proportion" in a sentence?
Use "a substantial proportion" to indicate a noteworthy quantity or percentage of something. For example, "A substantial proportion of the budget is allocated to education".
What are some alternatives to "a substantial proportion"?
You can use alternatives like "a significant portion", "a considerable fraction", or "a large segment" depending on the context.
Is it better to use "a significant proportion" or "a substantial proportion"?
Both phrases are suitable, but "a significant proportion" emphasizes importance, while "a substantial proportion" highlights the amount or size.
What does "substantial" mean in the phrase "a substantial proportion"?
In this context, "substantial" means considerable in size, amount, or importance. It suggests that the proportion is large enough to be noteworthy.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested