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
number of those
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "number of those" is grammatically correct and can be used in written English.
It is typically used to refer to a specific amount or quantity of people or things. Example: The number of those in attendance at the concert exceeded our expectations.
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(2)
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
57 human-written examples
A number of those have been released".
News & Media
A number of those people have businesses.
News & Media
The number of those followers is impossible to estimate.
News & Media
We don't have a huge number of those.
News & Media
Today, the number of those groups seems to be multiplying.
News & Media
CS: Well there are a number of those available.
News & Media
A disproportionately high number of those are black and Hispanic.
News & Media
A large number of those who remain are now displaced.
News & Media
And the number of those coaches is growing.
News & Media
A growing number of those ingredients now come from China.
News & Media
(A number of those arrested were quickly released).
News & Media
Expert writing Tips
Best practice
When using "number of those", ensure the "those" refers to a clearly defined group or set previously mentioned in the text. This avoids ambiguity and maintains clarity.
Common error
Avoid using "number of those" if the referent for "those" is vague or undefined. Always provide a clear antecedent to prevent confusion. For example, instead of saying "The number of those increased", specify "The number of those students increased."
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "number of those" functions as a determiner phrase, specifying a particular quantity within a previously mentioned group. As Ludwig AI confirms, it is grammatically sound and frequently used. The surrounding context provides the specific referent for 'those'.
Frequent in
News & Media
68%
Science
16%
Formal & Business
6%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "number of those" is a grammatically correct and commonly used phrase to specify a quantity within a defined group. As Ludwig AI suggests, it serves to quantify and provide specific details about a subset. Predominantly found in news and media sources, its neutral register makes it suitable for various informative contexts. When using this phrase, ensure that the referent of "those" is clear to avoid ambiguity and enhance clarity in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
amount of those
Replaces "number" with "amount", slightly altering the focus from count to quantity.
quantity of those
Substitutes "number" with "quantity", emphasizing the measurable aspect.
count of those
Uses "count" in place of "number", providing a more direct reference to enumeration.
portion of those
Changes "number" to "portion", highlighting a fraction or segment of the whole.
percentage of those
Replaces "number" with "percentage", focusing on the proportional representation.
proportion of those
Similar to "percentage", but implies a ratio or comparative quantity.
figure for those
Replaces "number" with "figure", often used in statistical or reporting contexts.
total of those
Similar to "sum", emphasizing the aggregate quantity.
sum of those
Substitutes "number" with "sum", implying addition or total calculation.
many of those
Replaces the specific quantity with a general indication of a large quantity.
FAQs
How do I use "number of those" in a sentence?
Use "number of those" when you want to specify a quantity within a group that has already been identified. For instance, "Several candidates applied, and the "number of those" with experience was significant".
What phrases are similar to "number of those"?
Alternatives include "amount of those", "quantity of those", or "proportion of those", each emphasizing a slightly different aspect of quantity or relation.
Is it better to use "amount of those" or "number of those"?
Use "number of those" when referring to countable items or people. Use "amount of those" when referring to a mass or quantity that is not easily countable. In many contexts, they can be used interchangeably, but "number" is generally preferred for discrete entities.
How can I avoid vagueness when using "number of those"?
Ensure that "those" clearly refers back to a specific group mentioned earlier in the sentence or paragraph. If the group is not immediately clear, rephrase to specify the group directly. For example, instead of "The "number of those" affected", say "The "number of those" affected by the policy".
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested