investigation
An investigation is a careful search for facts about something that happened.
Explanation at your level:
An investigation is when you look for facts. You ask questions to find the truth. If something is lost, you start an investigation to find it. It is like being a detective.
When people want to know what happened, they start an investigation. Police do this to solve crimes. Scientists do this to learn how things work. You need to look at clues carefully.
An investigation is a formal process. It involves checking evidence and talking to people. Businesses often conduct an investigation if there is a problem at work. It helps them fix the issue and prevent it from happening again.
In professional and legal contexts, an investigation is a systematic inquiry. It requires thoroughness and accuracy. Investigators document their findings in a report. It is a serious, objective process used to ensure justice or improve systems.
The term suggests a rigorous, multi-faceted approach to uncovering truth. Beyond simple inquiry, it implies a structured methodology. Whether it is a journalistic investigation into corruption or a clinical investigation into a disease, the focus is on evidence-based conclusions and high-level analytical thinking.
Etymologically rooted in the act of 'tracking,' the word has evolved into a cornerstone of empirical research and jurisprudence. It represents the intersection of curiosity, logic, and skepticism. In academic or literary discourse, an investigation can also be a profound exploration of an idea, where the 'evidence' is intellectual rather than physical.
Word in 30 Seconds
- A systematic search for truth.
- Commonly used in legal and news contexts.
- Usually followed by the preposition 'into'.
- Rooted in the Latin word for tracking.
Think of an investigation as a deep-dive mission to find the truth. Whether it is a detective looking for clues at a crime scene or a scientist studying why a plant is wilting, the goal is always the same: to uncover facts.
It is not just a quick look; it is a systematic process. This means there is a plan involved. You don't just guess; you gather evidence, test theories, and piece together the puzzle until the picture is clear. It is a word we use in many areas of life, from serious legal matters to everyday problem-solving at work or school.
The word investigation comes from the Latin word investigare, which means 'to track' or 'to trace.' Imagine ancient hunters following footprints in the dirt; that is the literal root of the word!
It entered English in the 15th century, evolving through Old French. Originally, it was tied closely to the idea of searching for something physical. Over time, it grew to include abstract concepts, like searching for knowledge or truth. It is fascinating how a word about physical tracking became our go-to term for intellectual and legal discovery.
We use investigation in both formal and neutral contexts. In news reports, you will often hear about a 'police investigation' or a 'government investigation.' In a professional setting, you might hear about an 'internal investigation' regarding a company policy.
Common verbs that pair with it include launch, conduct, and conclude. You 'launch' an investigation when you start it, 'conduct' it while you are working, and 'conclude' it when you have finished your report. It is a serious word, so we usually avoid using it for minor, everyday things like looking for lost keys.
While 'investigation' itself is a formal noun, it is surrounded by cool idioms. For example:
- Leave no stone unturned: To investigate every possible detail.
- Get to the bottom of it: To find the root cause.
- Follow the paper trail: To investigate by looking at documents.
- Shed light on: To reveal information during an inquiry.
- Dig up dirt: To investigate someone to find something negative.
The word is a countable noun. You can have 'one investigation' or 'many investigations.' It is often preceded by articles like 'the' or 'an.' 'The investigation is ongoing' is a very common sentence structure.
Pronunciation-wise, it sounds like in-ves-ti-GAY-shun. The stress is on the 'GAY' syllable. It rhymes with words like foundation, creation, and station. Practice saying it slowly to get the rhythm right!
Fun Fact
It shares a root with 'vestige', meaning a footprint or trace.
Pronunciation Guide
Clear and crisp vowels
Slightly softer 't' sounds
Common Errors
- Misplacing stress
- Dropping the 'i' in the middle
- Adding an extra syllable at the end
Rhymes With
Difficulty Rating
Common in news
Needs formal context
Easy to pronounce
Common in media
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
Articles with Nouns
An investigation
Prepositional Phrases
Investigation into
Subject-Verb Agreement
The investigation is
Examples by Level
The police started an investigation.
Police = law, investigation = search
Use 'an' before 'i'
I want an investigation.
I want = I need
Noun usage
The investigation is long.
Long = takes time
Subject-verb agreement
They need an investigation.
Need = require
Article usage
The investigation is over.
Over = finished
Adjective usage
This is a big investigation.
Big = large
Adjective placement
We did an investigation.
Did = performed
Past tense verb
Who is in the investigation?
Who = person
Preposition usage
The investigation found the truth.
The company began an investigation.
She leads the investigation.
The investigation is very detailed.
We need the results of the investigation.
The investigation took two months.
The investigation is about the accident.
He is part of the investigation.
The investigation revealed several errors.
They are conducting a thorough investigation.
The investigation into the fire is ongoing.
He was asked to help with the investigation.
The investigation was closed due to lack of evidence.
Many people are following the investigation.
The investigation report was published today.
We are waiting for the results of the investigation.
The committee launched an independent investigation.
The journalist is conducting a deep investigation into the scandal.
The investigation uncovered a complex web of lies.
Despite the investigation, the cause remains unknown.
Public pressure forced an official investigation.
The investigation was handled with great care.
They are subject to an ongoing investigation.
The investigation provided clear evidence of fraud.
The investigation serves as a catalyst for policy change.
His investigation into the matter was exhaustive.
The investigation was stymied by a lack of cooperation.
The investigation yielded unexpected results.
The investigation was conducted with clinical precision.
A formal investigation was initiated by the board.
The scope of the investigation is quite broad.
The investigation highlights the need for transparency.
The investigation was an exercise in forensic detail.
The investigation sought to elucidate the underlying causes.
The investigation was a profound inquiry into human nature.
The investigation was characterized by its impartiality.
The investigation was a masterpiece of investigative journalism.
The investigation was mandated by the highest authority.
The investigation was a relentless pursuit of the truth.
The investigation was a meticulous reconstruction of events.
Common Collocations
Idioms & Expressions
"leave no stone unturned"
to investigate everything
The detective left no stone unturned.
neutral"get to the bottom of it"
find the truth
We will get to the bottom of this.
neutral"dig up dirt"
find bad information
He tried to dig up dirt on his rival.
casual"follow the money"
investigate financial records
To solve the fraud, follow the money.
neutral"shed light on"
reveal information
The report shed light on the issue.
formal"open a can of worms"
start a messy investigation
This investigation opened a can of worms.
casualEasily Confused
Both mean asking questions
Inquiry is often a formal hearing
The public inquiry.
Both involve study
Research is for knowledge, investigation for truth
Scientific research.
Both look at things
Inspection is checking quality
Building inspection.
Both are systematic
Analysis is breaking down data
Data analysis.
Sentence Patterns
Subject + conduct + investigation + into
They conducted an investigation into the matter.
The + investigation + reveal
The investigation revealed the truth.
Under + investigation
The case is under investigation.
Launch + an + investigation
We will launch an investigation.
Subject + be + part + of + investigation
He is part of the investigation.
Word Family
Nouns
Verbs
Adjectives
Related
How to Use It
8
Formality Scale
Common Mistakes
We usually use 'into' when referring to the subject of the inquiry.
While 'do' is okay, 'conduct' is much more professional.
Preposition choice is specific for this noun.
It is a countable noun, so it needs an article.
It is spelled with an 'i' after 't'.
Tips
Memory Palace
Imagine a detective office.
When to use
When you need to find facts.
Cultural Insight
Often associated with justice.
Grammar Shortcut
Think 'Investigation into'.
Say It Right
Stress the GAY.
Avoid 'about'
Use 'into' instead.
Did You Know?
It means to track.
Study Smart
Read news articles.
Word Family
Learn all forms.
Writing Tip
Use strong verbs.
Memorize It
Mnemonic
In-vest-i-gate: I go 'in' to 'vest' (examine) the 'gate' (entrance) to find clues.
Visual Association
A magnifying glass over a footprint.
Word Web
Challenge
Write three sentences about a mystery you solved.
Word Origin
Latin
Original meaning: to track or trace
Cultural Context
None, but can imply serious trouble.
Commonly used in news and legal dramas.
Practice in Real Life
Real-World Contexts
at work
- internal investigation
- conducted an investigation
- report the findings
school
- research investigation
- science investigation
- project investigation
news
- ongoing investigation
- police investigation
- official investigation
legal
- criminal investigation
- evidence for investigation
- conclude the investigation
Conversation Starters
"Have you ever followed an investigation in the news?"
"What makes a good investigator?"
"Why do we need investigations?"
"Would you like to be a detective?"
"What is the most famous investigation you know?"
Journal Prompts
Describe a time you had to investigate a problem.
If you were a detective, what would you investigate?
Why is truth important in an investigation?
Write a story about a secret investigation.
Frequently Asked Questions
8 questionsYes, you can have one or many.
Usually 'into'.
Yes, mostly used in professional settings.
Yes, if it's a research project.
I-N-V-E-S-T-I-G-A-T-I-O-N.
Investigate.
Investigator.
Yes, scientific investigation.
Test Yourself
The police started an ___.
The police start investigations.
Which word means to look for facts?
Investigation is a search for facts.
An investigation is always short.
Investigations can take a long time.
Word
Meaning
You launch an investigation.
Standard subject-verb-adjective order.
The team conducted an investigation ___ the incident.
Investigation into is the standard preposition.
Which is a synonym for investigation?
Inquiry is a formal synonym.
The word 'investigative' is an adjective.
It describes something related to an investigation.
The investigation was meticulous.
The ___ of the investigation was broad.
Scope is the correct noun for the range of an investigation.
Score: /10
Summary
An investigation is a systematic search for the truth, often used to resolve mysteries or crimes.
- A systematic search for truth.
- Commonly used in legal and news contexts.
- Usually followed by the preposition 'into'.
- Rooted in the Latin word for tracking.
Memory Palace
Imagine a detective office.
When to use
When you need to find facts.
Cultural Insight
Often associated with justice.
Grammar Shortcut
Think 'Investigation into'.
