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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
that quantity
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that quantity" is correct and usable in written English.
It can be used when referring to a specific amount or measurement that has been previously mentioned or is understood in context. Example: "To solve the equation, we need to determine that quantity before proceeding with the calculations."
✓ 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
60 human-written examples
check that quantity out.
News & Media
But not everyone is sure that quantity can ensure quality.
News & Media
If you want to take first prizes, remember that quantity counts more than quality.
News & Media
"It is possible that the landanum, in all that quantity, gave him indigestion.
News & Media
There is a widespread sense that quantity has come at the expense of quality.
News & Media
The bookshops are crammed with children's titles, but where is the quality in all that quantity?
News & Media
In some ways, Google's investors are betting that quantity can beat quality.
News & Media
The problem is that quantity restrictions prevent the specialisation gains that repeated complaining gives.
News & Media
Via the targeting step of pinch analysis, that quantity can be identified.
Science
They showed that quantity discount can effectively decrease each party's cost.
But when I looked more closely at their frequent dispatches, I realized that quantity seems to supersede quality.
News & Media
Expert writing Tips
Best practice
Use "that quantity" when referring back to a specific amount already mentioned in the text to maintain clarity and avoid repetition. For example, "The recipe calls for 2 cups of flour. If you double that quantity, adjust the other ingredients accordingly."
Common error
Avoid using "that quantity" if the amount you are referring to is not clearly defined or previously mentioned. This can lead to confusion for the reader. Ensure the reference is explicit.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that quantity" serves as a determiner phrase, specifically functioning as a demonstrative pro-form. Ludwig indicates that it is a correct and usable phrase, effectively referring back to a specific amount or measurement previously mentioned or understood in context. It substitutes a noun phrase representing an already established numerical value.
Frequent in
News & Media
43%
Science
33%
Encyclopedias
3%
Less common in
Wiki
2%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "that quantity" is a grammatically sound and frequently used demonstrative pro-form. According to Ludwig, it's a correct and usable expression that effectively references a previously specified amount. Its usage spans diverse contexts, notably in news, science, and encyclopedic content, with a neutral formality level. When using this phrase, ensure that the quantity being referenced is clear to avoid ambiguity. For alternative expressions, consider "that amount", "that volume", or "that number". Overall, "that quantity" serves as a valuable tool for concise and clear communication across various writing styles.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that amount
Replaces "quantity" with the more general term "amount", focusing on the overall sum rather than the precise measurement.
that volume
Substitutes "quantity" with "volume", implying a measurement of space occupied.
that number
Replaces "quantity" with "number", suitable when referring to a specific count.
that proportion
Uses "proportion" instead of "quantity", emphasizing a relative amount or ratio.
that extent
Employs "extent" to convey the degree or scope of something, rather than a specific amount.
that measure
Replaces "quantity" with "measure", highlighting the act of measuring or the unit of measurement.
that figure
Substitutes "quantity" with "figure", typically used when referring to numerical data or statistics.
that magnitude
Uses "magnitude" to express the size or importance of something, rather than a precise quantity.
that degree
Replaces "quantity" with "degree", often used to indicate the intensity or level of something.
that sum
Substitutes "quantity" with "sum", emphasizing the total when referring to a calculation or addition.
FAQs
How can I use "that quantity" in a sentence?
You can use "that quantity" to refer back to a specific amount previously mentioned. For example, "The initial estimate was 100 units. We need to produce "that quantity" by the end of the month."
What can I say instead of "that quantity"?
You can use alternatives like "that amount", "that volume", or "that number" depending on the context.
Is it better to say "that quantity" or "the quantity"?
"That quantity" is used to refer to a specific amount already mentioned, whereas "the quantity" refers to a general or unspecified amount. For instance, "We measured the water. That quantity was sufficient." vs. "The quantity of water needed is significant."
What is the difference between "that quantity" and "this quantity"?
"That quantity" usually refers to something mentioned earlier in the conversation or text, while "this quantity" is used to refer to something you are currently presenting or focusing on. "We discussed the initial volume; "that quantity" turned out to be incorrect. However, "this quantity" is more accurate."
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested