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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 week
Grammar usage guide and real-world examplesUSAGE SUMMARY
"that week" is correct and usable in written English.
You can use it to refer to a specific week in the past, present, or future. For example, "I'm planning to study for my upcoming exam that week."
✓ Grammatically correct
News & Media
Wiki
Science
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
It was her second visit that week.
News & Media
Tebow posted a -0.22 W.P.A. that week.
News & Media
I learned a lot that week".
News & Media
He expected more test results that week.
News & Media
It was cold that week.
News & Media
There were several meetings that week.
News & Media
It was Phife's birthday that week.
News & Media
Gross revenue that week was $64,000.
News & Media
Instead, he won 12 races that week".
News & Media
"The office was so quiet that week.
News & Media
The whole village left that week".
News & Media
Expert writing Tips
Best practice
Use "that week" to refer to a specific week already mentioned or understood in context to avoid ambiguity. For example, "The project is due next month. We will finalize the details that week."
Common error
Avoid using "that week" without a clear reference point. Instead of saying "That week was terrible", specify the week or event that made it terrible. A better sentence is, "The week of the hurricane was terrible."
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that week" functions as an adverbial phrase of time, specifying a particular week relevant to the context. Ludwig provides numerous examples showing how it's used to pinpoint when an event occurred or will occur.
Frequent in
News & Media
60%
Wiki
15%
Science
10%
Less common in
Formal & Business
5%
Reference
5%
Encyclopedias
5%
Ludwig's WRAP-UP
In summary, "that week" is a versatile and commonly used phrase for referring to a specific week already established in the conversation or context. As Ludwig AI confirms, it is grammatically correct and widely accepted. While it's suitable for most situations, more formal or scientific writing might benefit from using more precise alternatives like "during that period" or "within that seven-day span". Remember to provide clear context when using "that week" to avoid any ambiguity. Source analysis of Ludwig's examples show it appears most frequently in news and media, and should be considered neutral in tone.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that particular week
Adds emphasis and specifies a certain week.
the week in question
Used when the week is already known or under discussion.
during that period
Focuses on the duration, similar to referring to a week.
the given week
Implies the week is predetermined or contextually understood.
in the course of that week
Emphasizes the progression of events within the week.
within that seven-day span
More precise and highlights the exact duration.
that seven day period
More formal and scientific substitution.
during those days
Refers to the same time frame using days instead of week.
at that time
More generic and could refer to a period longer than a week.
the week before
Refers to the previous week, creating a chronological contrast.
FAQs
How can I use "that week" in a sentence?
"That week" is used to refer to a specific week that's either already been mentioned or is clear from the context. For example, "The conference is in July; I'll be traveling "that week"."
What are some alternatives to using "that week"?
Depending on the context, you could use phrases like "during that period", "in the course of that week", or "within that seven-day span".
Is it appropriate to use "that week" in formal writing?
Yes, "that week" is generally acceptable in formal writing, provided the context is clear. However, in very formal or scientific writing, you might prefer more precise alternatives like "that seven day period".
How does "that week" differ from "the week"?
"That week" refers to a specific week already understood or mentioned, while "the week" can refer to a general week or the current week. For instance, "I enjoyed that week" implies a known week, whereas "I'm busy this week" refers to the current week.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested