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 thorough investigation into
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a thorough investigation into" is correct and usable in written English.
You can use it when discussing the process of examining or researching a particular subject or issue in detail. Example: "The committee has called for a thorough investigation into the allegations of misconduct."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(14)
a comprehensive study of
an in-depth analysis of
a meticulous examination of
a detailed review of
a rigorous assessment of
an in-depth examination of
a comprehensive investigation into
A more detailed analysis of
a more detailed analysis of
a prolonged deliberation on
a careful assessment of
a comprehensive review of
a detailed study of sth
a comprehensive examination of
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
"To date thousands of apps have been investigated and around 200 have been suspended — pending a thorough investigation into whether they did in fact misuse any data.
News & Media
We are currently conducting a thorough investigation into these complaints".
News & Media
A thorough investigation into the disturbance is under way".
News & Media
Australia's energy minister, Martin Ferguson, has announced plans for a thorough investigation into the cause.
News & Media
Certainly I am determined to have a thorough investigation into this matter".
News & Media
Frequent breakage of micro-drill is a major problem necessitating a thorough investigation into the process.
Science
"Consistent with the university's Academic Misconduct policy, a faculty committee conducted a thorough investigation into Professor Wansink's research.
Academia
President Dmitry Medvedev, a former lawyer, has made grand statements promising a thorough investigation into Magnitsky's death – a unique case.
News & Media
"I want the ministries and agencies concerned to carry out a thorough investigation into the case," he said.
News & Media
"It's really critical to allow the defense time to do a thorough investigation into mitigation of their client.
News & Media
The EU said Russian authorities should launch "a thorough investigation" into the "heinous crime" of her murder.
News & Media
Expert writing Tips
Best practice
Use "a thorough investigation into" when you want to emphasize the depth and detail of the examination, assuring the audience of its comprehensiveness.
Common error
Avoid using "a thorough investigation into" if the inquiry is preliminary or superficial. Overstating the level of detail can undermine credibility.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a thorough investigation into" functions as a noun phrase that introduces the detailed examination of a subject or issue. The phrase is often the subject or object of a verb indicating an action, promise, or request. Ludwig AI confirms this usage.
Frequent in
News & Media
45%
Science
25%
Formal & Business
15%
Less common in
Academia
10%
Wiki
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "a thorough investigation into" is a frequently used and grammatically correct phrase for indicating a detailed and comprehensive examination of a subject. Ludwig AI analysis supports its widespread usage across various domains, notably in news, science, and formal business contexts. While alternatives exist, such as "an exhaustive inquiry into" or "a comprehensive study of", this phrase effectively conveys the depth and seriousness of the investigation. When using the phrase, clarity and precision are key to maintaining credibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
an exhaustive inquiry into
Emphasizes the comprehensiveness and depth of the investigation.
a comprehensive study of
Focuses on the systematic and detailed examination of a topic.
an in-depth analysis of
Highlights the detailed and analytical nature of the investigation.
a meticulous examination of
Stresses the careful and precise nature of the review.
a detailed review of
Focuses on a thorough and itemized assessment.
a rigorous assessment of
Highlights the strict and demanding nature of the evaluation.
a systematic investigation of
Emphasizes the organized and methodical approach to the inquiry.
a forensic analysis of
Implies a detailed and scientific approach to uncovering facts, often in legal contexts.
a probe into
Suggests a discreet or subtle investigation.
a fact-finding mission regarding
Highlights the goal of discovering and verifying information.
FAQs
How can I use "a thorough investigation into" in a sentence?
You can use "a thorough investigation into" to describe the process of examining something in detail, such as "The police launched "a thorough investigation into" the crime scene".
What are some alternatives to "a thorough investigation into"?
Alternatives include "an exhaustive inquiry into", "a comprehensive study of", or "an in-depth analysis of", depending on the specific context.
Is it redundant to say "a very thorough investigation into"?
While not strictly redundant, using "very" before "thorough" can be seen as unnecessary since "thorough" already implies a high level of detail. Consider using a stronger synonym if you want to emphasize the depth even further.
What's the difference between "a thorough investigation into" and "a superficial investigation into"?
"A thorough investigation into" implies a detailed and comprehensive examination, while "a superficial investigation into" suggests a surface-level or cursory review. They are opposite in scope and depth.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested