the period in which

USAGE SUMMARY

The phrase "the period in which" is correct and usable in written English.
It can be used to specify a particular timeframe during which an event or situation occurs. Example: "The period in which the project was completed was marked by significant challenges and achievements."

✓ Grammatically correct

News & Media

Science

Academia

Encyclopedias

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"The period in which you were target-free is over".

The New York Times

Tremain makes Merivel a man who resigns himself to the period in which he thrives.

The Guardian - Books

The Leahy years will be rewritten as the period in which Tesco overreached itself.

The Guardian - Business

The article also misstated the period in which the show is set.

The New York Times

Among the highlights is Carter's diary from the period in which he discovered Tutankhamun's tomb.

The Guardian

The article also misstated the period in which Nissan used ChromaFlair on two cars in Europe.

The New York Times

Nasr compared the current situation to the period in which Al Qaeda first emerged.

The New Yorker

The article also misstated the period in which griots emerged in Mali.

The New York Times

"To have things architecturally and aesthetically consistent with the period in which they were built".

The New York Times

This is the period in which the new film Trumbo is set.

The Guardian - Opinion

If they do, that limits the period in which he has to tiptoe around them.

The New York Times

Expert writing Tips

Best practice

Use "the period in which" to clearly define a specific timeframe when discussing historical events, scientific studies, or any situation where temporal precision is important.

Common error

Avoid using "the period in which" when a simpler preposition like "during" or "in" suffices. Overusing the phrase can make your writing sound unnecessarily verbose. For example, instead of "the period in which the war occurred", consider "during the war".

Linguistic Context

The phrase "the period in which" functions as an adjective phrase introducing a relative clause, modifying a noun (usually a time-related noun like "period", "time", etc.). It serves to specify or define a particular timeframe. As Ludwig AI explains, this phrase is usable in written English.

Expression frequency: Very common

Frequent in

News & Media

43%

Science

25%

Academia

15%

Less common in

Encyclopedias

7%

Wiki

3%

Formal & Business

2%

Ludwig's WRAP-UP

In summary, the phrase "the period in which" is a grammatically sound and frequently used construction for specifying a timeframe. As highlighted by Ludwig AI, it serves to provide temporal context in a clear and formal manner. While it is most common in news, science, and academic writing, it is crucial to avoid overuse and consider simpler alternatives like "during" or "when" for conciseness. For clarity and precision, particularly in formal contexts, "the period in which" remains a valuable and correct option.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

the time during which

Replaces "period" with "time" and uses "during" instead of "in which", slightly altering the structure but maintaining the core meaning.

the duration when

Substitutes "period in which" with "duration when", focusing on the length of time.

the phase when

Replaces "period" with "phase", emphasizing a stage or distinct part of a process or event.

the era that

Employs "era" instead of "period", referring to a longer span of time often associated with specific characteristics.

the interval when

Uses "interval" to specify a measured or defined length of time.

during the timeframe that

Emphasizes the specific boundaries of the time being referred to.

in the times that

A more colloquial way of expressing a specific period. Less precise than "the period in which".

the span when

Replaces "period" with "span", focusing on the continuous length of time.

through the years that

Implies a longer, more extended duration, often referring to multiple years.

the stage at which

Highlights a specific point or step within a process.

FAQs

How can I rephrase "the period in which" to be more concise?

You can use alternatives like "during", "when", or "while" depending on the context. For instance, "the period in which the study was conducted" can be simplified to "during the study".

Is "the period in which" formal or informal?

"The period in which" is generally considered formal. For more informal contexts, you might prefer alternatives like "when" or "while".

What's the difference between "the period in which" and "the time when"?

While both phrases refer to a specific duration, "the period in which" emphasizes a distinct segment of time, whereas "the time when" focuses more on a specific point or moment within that duration. They are largely interchangeable.

When is it most appropriate to use "the period in which"?

It is most appropriate when you need to clearly and formally specify a particular timeframe during which an event or condition occurs, especially in academic, scientific, or formal writing. For instance, in research papers or historical analyses.