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B1 noun #43 پرکاربردترین 12 دقیقه مطالعه

investigation

رتبه 43

At the A1 level, you can think of an investigation as a 'big search' to find an answer. Imagine a detective in a movie with a magnifying glass. They are looking for clues to find out who did something. In simple English, an investigation is when the police or a teacher looks very carefully to find the truth. For example, if a toy is missing in a classroom, the teacher might start an investigation to find it. You use this word when you want to say that someone is not just looking, but they are looking very, very hard to solve a problem. It is a formal word for 'finding out'. You might see this word in simple stories about police or mysteries. Remember, it is a noun, so we say 'the investigation' or 'an investigation'. It is a long word, but you can break it down: in-ves-ti-ga-tion. It is like being a detective. Even if you are just a beginner, you can use this word to talk about police work or when someone is trying to find a secret. Just think of it as a serious way to say 'looking for the truth'.

At the A2 level, you should understand that an investigation is a planned way to find facts. It is more than just a quick look. When the police do an investigation, they talk to people, look at photos, and try to catch a criminal. You will often see this word in news headlines. For example, 'Police start investigation into bank robbery.' Notice the word 'into' after investigation. This is a very common pattern. You can also use it at school or work. If a computer stops working, the IT department might carry out an investigation to see why. This means they will check many things to find the problem. It is a useful word because it sounds more professional than 'looking'. Instead of saying 'The police are looking at the crime,' you can say 'The police are conducting an investigation.' This makes your English sound much better. You should also know the verb form, 'to investigate'. So, 'They are investigating the case' (verb) and 'They are doing an investigation' (noun) mean almost the same thing. Try to use the noun form with verbs like 'start', 'do', or 'finish'.

At the B1 level, you should be comfortable using 'investigation' in various contexts, including legal, scientific, and workplace scenarios. An investigation is a systematic inquiry. This means it follows a specific order or set of rules. For instance, a 'criminal investigation' follows legal rules to ensure evidence can be used in court. A 'scientific investigation' follows the scientific method to ensure the results are accurate. You should also start using more descriptive adjectives with this word. For example, a 'thorough investigation' is one that is very detailed. An 'ongoing investigation' is one that is still happening right now. You will often hear the phrase 'under investigation' in the news. If a famous person is 'under investigation', it means the authorities are looking into their actions to see if they broke the law. Another important point is the preposition 'into'. We almost always say 'an investigation into something'. For example, 'The company launched an investigation into the cause of the accident.' Using 'into' instead of 'about' is a sign of a B1 level speaker. You should also recognize that investigations can be 'private' or 'public', depending on who is doing the work and if the results are shared with everyone.

At the B2 level, you should understand the nuances of 'investigation' and how it differs from similar words like 'inquiry', 'probe', or 'scrutiny'. An investigation is often a formal process triggered by a specific event, such as a crime, an accident, or an allegation of misconduct. You should be able to use complex collocations, such as 'to launch a full-scale investigation' or 'to obstruct an investigation'. Obstructing an investigation means trying to stop it or hiding the truth, which is a serious matter. You should also be aware of the different types of investigations, such as 'forensic investigations' (using science to solve crimes) or 'undercover investigations' (where people hide their identity to get information). In business, an 'internal investigation' is conducted by the company itself, while an 'independent investigation' is done by an outside group to ensure there is no bias. You should be able to discuss the 'findings' of an investigation, which are the results or the facts that were discovered. For example, 'The investigation's findings were published in a 50-page report.' At this level, you can use the word to describe complex social or political issues, such as 'an investigation into the roots of poverty'.

At the C1 level, you should use 'investigation' with precision in academic and professional writing. You should understand that an investigation is not just about finding facts, but about the 'procedural integrity' of the search. This means that how the investigation is done is just as important as what is found. You might use terms like 'preliminary investigation' to describe the initial stages, or 'comprehensive investigation' for an all-encompassing one. You should also be familiar with the metaphorical use of the word in literature or philosophy, where an author might conduct an 'investigation into the human soul' or an 'investigation into the nature of time'. At this level, you should be able to use the word in the passive voice fluently, such as 'An investigation is being spearheaded by the Attorney General.' You should also understand the legal implications of an investigation, such as 'due process' and 'evidence gathering'. You can contrast 'investigation' with 'surveillance' or 'intelligence gathering', noting that an investigation is usually a response to a past event, while surveillance is often a preventative measure. Your vocabulary should include related formal terms like 'inquisition' (though this has historical and negative connotations) or 'disquisition' (a formal discourse or investigation into a subject).

At the C2 level, you possess a masterly command of the word 'investigation', recognizing its role as a cornerstone of empirical inquiry and legal jurisprudence. You understand the subtle distinctions between a 'statutory investigation', an 'administrative inquiry', and a 'judicial probe'. You can discuss the 'methodological rigor' required for a scientific investigation to be considered valid by the peer-review community. You are aware of the historical weight of the word, from the 'Inquisition' of the Middle Ages to the 'Congressional investigations' of the modern era, and how these contexts shape the word's current connotations of power and scrutiny. You can use the word in highly sophisticated structures, such as 'The veracity of the claims was subject to the most stringent investigation imaginable.' You also understand the nuances of 'investigative journalism' as a fourth estate, acting as a check on institutional power. You can discuss the ethics of an investigation, including the balance between the 'right to know' and the 'right to privacy'. Your use of the word is characterized by an awareness of its Latin roots (*investigare* - to track footprints), and you might use this knowledge to create powerful metaphors in your writing, describing an investigation as the 'tracking of truth through the wilderness of deception'.

تمرین کن مثال‌ها نکات و راهنمایی‌ها

investigation در ۳۰ ثانیه

A formal and systematic process of finding out the facts about a crime, accident, or problem.
Commonly used by police, scientists, and journalists to uncover hidden truths or solve mysteries.
Usually involves gathering evidence, interviewing people, and performing detailed analysis.
Often paired with the preposition 'into' and verbs like 'conduct', 'launch', or 'carry out'.

The word investigation refers to a systematic, formal, and detailed examination of a specific subject, event, or problem. It is not merely a casual look or a quick check; rather, it implies a structured process designed to uncover hidden facts, determine the truth, or solve a mystery. In everyday life, you might hear this word in the context of news reports regarding crime, but its application is far broader, extending into science, business, and personal inquiry. When someone says they are conducting an investigation, they are signaling that they are taking a serious, evidence-based approach to understanding a situation. This process usually involves gathering data, interviewing witnesses or experts, analyzing physical evidence, and eventually reaching a conclusion based on the findings. The term carries a weight of authority and objectivity, suggesting that the person or group involved is looking for objective reality rather than relying on intuition or hearsay.

Criminal Context: The most common use involves law enforcement agencies like the police or the FBI looking into illegal activities to identify suspects and gather evidence for a trial.

The detective spent months on the investigation before finally making an arrest.

Beyond the world of crime, investigations are vital in the scientific community. A scientific investigation is the process by which researchers test hypotheses and explore the natural world. This involves controlled experiments and rigorous data collection. Similarly, in a corporate setting, a company might launch an internal investigation if there are allegations of financial misconduct or harassment. This ensures that the organization remains transparent and accountable. The word can also be used in a more general sense, such as a journalist performing an investigation into government spending or a student conducting an investigation into local history. In all these cases, the core meaning remains the same: a deep dive into the facts to reveal what is not immediately obvious.

Scientific Context: Researchers use systematic methods to study phenomena, often referred to as a scientific investigation, to prove or disprove theories.

The university launched an investigation into the effects of microplastics on marine life.

In a digital age, the term has also evolved to include 'forensic investigations' of computers and networks. When a company experiences a data breach, experts perform a digital investigation to find the source of the hack. This highlights how the word adapts to new technologies while maintaining its fundamental sense of 'searching for the truth through evidence'. Whether it is a private investigator looking for a missing person or a committee investigating a plane crash, the goal is always clarity and resolution. The word implies that there is a question that needs an answer, and that answer can only be found through hard work and careful scrutiny.

Journalistic Context: Investigative journalism involves reporters spending weeks or months researching a single topic to expose corruption or social issues.

The newspaper's investigation revealed widespread fraud in the local housing market.

Following the accident, a full-scale investigation was ordered by the transport authority.

The private investigation yielded several new leads that the police had previously missed.

Using the word investigation correctly requires understanding its role as a noun and the specific verbs that typically accompany it. Because an investigation is a process, we often use verbs that describe the start, middle, and end of that process. For instance, you 'launch' or 'initiate' an investigation when it begins. While it is happening, you 'conduct', 'carry out', or 'pursue' it. When it finishes, you 'complete' or 'conclude' it. These collocations are essential for sounding natural in English. It is also important to note that 'investigation' is a countable noun, meaning you can have 'an investigation', 'several investigations', or 'the investigation'.

Common Verb Pairings: To conduct, to carry out, to launch, to undergo, to conclude, to obstruct.

The board of directors decided to conduct an investigation into the CEO's expenses.

Adjectives play a crucial role in describing the nature of the investigation. If an investigation is very detailed and leaves no part unexamined, it is often called a 'thorough', 'exhaustive', or 'comprehensive' investigation. If it is done by an outside group to ensure fairness, it is an 'independent' investigation. If it is related to a crime, it is a 'criminal' investigation. Using these descriptive words helps provide context to the reader or listener. For example, saying 'The police are doing an investigation' is correct, but 'The police are conducting a thorough criminal investigation' is much more professional and descriptive.

Descriptive Adjectives: Thorough, independent, preliminary, ongoing, joint, forensic, undercover.

An independent investigation was necessary to ensure there was no bias in the results.

In more complex sentences, 'investigation' can be the subject or the object. As a subject, it might 'reveal', 'show', or 'uncover' something. As an object, it is something that people 'demand', 'call for', or 'await'. In legal and political discourse, you will often hear the phrase 'under investigation'. This means that a person or organization is currently being examined by an authority. For example, 'The senator is currently under investigation for tax evasion.' This state of being 'under' the process is a very common idiomatic use of the word in news media.

Prepositional Phrases: Under investigation, subject to investigation, pending investigation, in the course of the investigation.

Several high-ranking officials are under investigation following the leak of the documents.

The investigation into the missing funds is expected to take several weeks.

After a preliminary investigation, the researchers decided to expand their study.

The word investigation is a staple of news broadcasting and journalism. If you turn on a news channel like the BBC or CNN, you are almost certain to hear it within the first thirty minutes. It is used to describe the actions of police after a crime, the work of government committees looking into policy failures, or the efforts of journalists to expose corruption. In this context, the word carries a sense of drama and importance. It suggests that there is a secret being uncovered or a wrong being righted. You will also hear it frequently in 'True Crime' podcasts and documentaries, where the narrator describes the step-by-step process of how a mystery was solved.

News & Media: Used to report on police activities, political scandals, and investigative reports.

'We are currently conducting a full investigation,' the police chief told reporters at the scene.

In professional and academic environments, 'investigation' is used to describe research and problem-solving. In a hospital, doctors might perform an investigation into a patient's unusual symptoms, which involves various tests and scans. In a laboratory, a scientist might describe their latest project as an investigation into a new chemical reaction. In these settings, the word is less about 'crime' and more about 'discovery' and 'analysis'. It is a formal way of saying 'we are looking into this very carefully to understand how it works'. If you work in an office, you might hear about an investigation into a technical glitch or a customer complaint.

Professional/Academic: Used in science, medicine, and business to describe systematic research or troubleshooting.

The medical investigation included blood tests, an MRI, and a series of physical exams.

Legal dramas and police procedural TV shows (like 'Law & Order' or 'Sherlock') are perhaps the most common places for learners to encounter this word. Characters often discuss the 'status of the investigation' or 'new evidence in the investigation'. In these shows, the word is central to the plot. It represents the journey from confusion to clarity. Furthermore, in the world of finance, you might hear about 'regulatory investigations' where government bodies check if banks or companies are following the law. This highlights that an investigation can be a bureaucratic process as much as a physical one.

Legal & Finance: Used for regulatory checks, audits, and legal inquiries into financial practices.

The bank is cooperating fully with the federal investigation into money laundering.

The investigation into the plane crash lasted for over two years before a report was released.

A congressional investigation was called to examine the government's response to the pandemic.

One of the most frequent mistakes learners make with the word investigation is using the wrong preposition. Many students naturally want to say 'investigation about' or 'investigation of', influenced by their native languages. However, in English, the standard preposition is 'into'. While 'of' can be used in specific grammatical structures (like 'the investigation of the crime scene'), 'into' is the most versatile and correct choice when describing the subject of the inquiry. For example, 'The investigation into the cause' is much better than 'The investigation about the cause'.

Preposition Error: Incorrect: An investigation about the accident. Correct: An investigation into the accident.

The committee launched an investigation into (not 'about') the security breach.

Another common error is confusing the noun 'investigation' with the verb 'investigate'. Some learners might say 'They are doing an investigate', which is grammatically incorrect. You must use the noun form with a supporting verb like 'do', 'conduct', or 'carry out'. Conversely, if you use the verb, you don't need the word 'an'. For example, 'They are investigating the case' is the verb form, while 'They are conducting an investigation' is the noun form. Mixing these up can make your English sound clunky or confused.

Noun vs. Verb: Incorrect: We need to investigation this. Correct: We need to investigate this OR We need an investigation.

The team will investigate the matter immediately; a full investigation will follow.

A subtle mistake involves the level of formality. 'Investigation' is a formal word. Using it for very trivial things can sound sarcastic or overly dramatic. If you are just looking for your keys, saying 'I am conducting an investigation for my keys' sounds like a joke. In casual settings, words like 'look', 'search', or 'check' are more appropriate. Save 'investigation' for situations that involve a process, evidence, or a formal inquiry. Additionally, ensure you don't over-pluralize it. While you can have 'investigations', we often refer to a single complex case as 'the investigation' (singular) even if it involves many people and steps.

Register Misuse: Using 'investigation' for finding a lost sock is too formal. Use 'search' instead.

The investigation (not 'investigations') into the fraud is still ongoing.

The journalist's investigation led to the resignation of the mayor.

A thorough investigation revealed that the machine failed due to poor maintenance.

While investigation is a powerful and common word, there are several synonyms that might be more appropriate depending on the context. Understanding the nuances between these words will help you express yourself more precisely. For example, 'inquiry' is often used for official, government-led processes. 'Probe' is a favorite of journalists because it is short and implies a deep, perhaps uncomfortable, search for the truth. 'Examination' is more general and can refer to looking at an object or a person's health. 'Scrutiny' implies a very close and critical look at something, often to find faults.

Investigation vs. Inquiry: An investigation is the process of gathering facts; an inquiry is often the formal body or hearing that reviews those facts.

The public inquiry was held to determine if the police investigation had been handled correctly.

In scientific contexts, you might use 'study' or 'research' instead of investigation. While 'investigation' implies looking for a specific answer or solving a problem, 'research' is broader and involves the general collection of knowledge. In a business setting, you might hear 'audit', which is a specific type of investigation into financial records. If someone is looking into a crime informally, they might be 'snooping' (which is negative and implies being nosy) or 'scouting' (which implies looking for information before taking action). Choosing the right word depends on whether the search is formal, legal, scientific, or casual.

Investigation vs. Research: Investigation is usually reactive (solving a specific problem), while research is often proactive (expanding general knowledge).

The research took years, but the investigation into the lab accident was finished in a week.

Finally, consider the word 'analysis'. While an investigation is the whole process of gathering and looking at facts, analysis is the specific step where you interpret what those facts mean. You might conduct an investigation that includes a financial analysis and a forensic analysis. Another alternative is 'review', which is often less intense than an investigation. A 'performance review' is a standard check, whereas an 'investigation into performance' suggests that something has gone seriously wrong. Understanding these levels of intensity will help you choose the word that fits your situation perfectly.

Investigation vs. Analysis: Investigation is the act of searching; analysis is the act of making sense of what you found.

The investigation provided the data, but the analysis provided the solution.

The company's tax records are under intense scrutiny by the authorities.

A thorough examination of the evidence showed that the witness was lying.

چقدر رسمی است؟

رسمی

خنثی

غیر رسمی

Child friendly

عامیانه

نکته جالب

The root word 'vestigium' means 'footprint'. So, when you conduct an investigation, you are literally 'following the footprints' of the truth.

راهنمای تلفظ

UK /ɪnˌves.tɪˈɡeɪ.ʃən/

US /ɪnˌves.təˈɡeɪ.ʃən/

in-ves-ti-GA-tion

هم‌قافیه با

Education Information Situation Communication Application Organization Celebration Foundation

خطاهای رایج

Pronouncing the 't' as a 'd' (inves-di-ga-tion).
Forgetting the 'i' sound in the middle (in-ves-ga-tion).
Putting the stress on 'ves' instead of 'ga'.
Pronouncing the 'tion' as 'tee-on' instead of 'shun'.
Mumbling the first syllable 'in'.

سطح دشواری

خواندن 3/5

The word is long but very common in news and academic texts.

نوشتن 4/5

Requires correct spelling and the use of the preposition 'into'.

صحبت کردن 3/5

Pronunciation can be tricky due to the number of syllables.

گوش دادن 2/5

Easy to recognize in news broadcasts because of its distinct sound.

بعداً چه یاد بگیریم؟

پیش‌نیازها

Search Find Police Question Fact

بعداً یاد بگیرید

Evidence Suspect Procedure Conclusion Analysis

پیشرفته

Jurisprudence Forensics Inquisition Empirical Methodology

گرامر لازم

Noun + Preposition

Investigation + into (not about).

Passive Voice

An investigation is being conducted.

Gerund as Subject

Investigating the case took a long time.

Articles with Nouns

An investigation (general) vs The investigation (specific).

Adjective Placement

A thorough, independent investigation (order of adjectives).

مثال‌ها بر اساس سطح

The police started an investigation to find the thief.

La police a commencé une enquête pour trouver le voleur.

Use 'an' before investigation because it starts with a vowel.

My teacher did a small investigation to find my lost pen.

Mon professeur a fait une petite enquête pour trouver mon stylo perdu.

'Small' is an adjective describing the noun 'investigation'.

Is there an investigation about the broken window?

Y a-t-il une enquête sur la fenêtre cassée ?

In simple English, 'about' is okay, but 'into' is better.

The detective is on a big investigation.

Le détective est sur une grande enquête.

'On an investigation' means they are currently doing it.

We need an investigation to know the truth.

Nous avons besoin d'une enquête pour connaître la vérité.

'To know' is the purpose of the investigation.

The investigation was very fast.

L'enquête a été très rapide.

'Was' is the past tense of 'is'.

He likes stories about a police investigation.

Il aime les histoires sur une enquête policière.

'Police' acts as an adjective here.

They finished the investigation yesterday.

Ils ont terminé l'enquête hier.

'Finished' is the verb; 'investigation' is the object.

The police are conducting an investigation into the car accident.

La police mène une enquête sur l'accident de voiture.

'Conducting' is a formal verb often used with investigation.

We are waiting for the results of the investigation.

Nous attendons les résultats de l'enquête.

'Results of the investigation' is a common noun phrase.

The school started an investigation because of the fire alarm.

L'école a commencé une enquête à cause de l'alarme incendie.

'Because of' explains the reason for the investigation.

She wants to be an investigator and do many investigations.

Elle veut être enquêtrice et mener de nombreuses enquêtes.

'Investigator' is the person who does the 'investigation'.

The investigation showed that the man was innocent.

L'enquête a montré que l'homme était innocent.

The investigation is the subject that 'showed' something.

Is the investigation still going on?

L'enquête est-elle toujours en cours ?

'Going on' means continuing or happening.

They found new clues during the investigation.

Ils ont trouvé de nouveaux indices au cours de l'enquête.

'During' is a preposition of time.

The investigation into the missing dog was successful.

L'enquête sur le chien disparu a été couronnée de succès.

'Successful' describes the outcome of the investigation.

The company launched an internal investigation into the missing funds.

L'entreprise a lancé une enquête interne sur les fonds manquants.

'Internal' means the investigation is done by the company itself.

A thorough investigation is required to determine the cause of the crash.

Une enquête approfondie est nécessaire pour déterminer la cause du crash.

'Thorough' means very detailed and careful.

The suspect is currently under investigation by the federal police.

Le suspect fait actuellement l'objet d'une enquête de la part de la police fédérale.

'Under investigation' is a fixed idiomatic phrase.

The investigation revealed a series of errors in the accounting system.

L'enquête a révélé une série d'erreurs dans le système comptable.

'Revealed' is a formal way to say 'showed' or 'uncovered'.

They decided to call for an independent investigation to avoid bias.

Ils ont décidé de demander une enquête indépendante pour éviter tout parti pris.

'Call for' means to publicly demand something.

The investigation was hampered by a lack of physical evidence.

L'enquête a été entravée par un manque de preuves physiques.

'Hampered' means made difficult or slowed down.

Following the investigation, several employees were dismissed.

À la suite de l'enquête, plusieurs employés ont été licenciés.

'Following' acts as a preposition meaning 'after'.

The scientific investigation into the new virus took several months.

L'enquête scientifique sur le nouveau virus a pris plusieurs mois.

Scientific investigations focus on facts and data.

The journalist's investigation uncovered a massive political scandal.

L'enquête du journaliste a mis au jour un énorme scandale politique.

'Uncovered' is often used for secrets or hidden facts.

The authorities are carrying out a forensic investigation at the scene.

Les autorités mènent une enquête médico-légale sur les lieux.

'Forensic' refers to scientific methods used in crime solving.

He was accused of obstructing the investigation by destroying documents.

Il a été accusé d'entrave à l'enquête en détruisant des documents.

'Obstructing' means intentionally making the process difficult.

The investigation into the data breach is still in its preliminary stages.

L'enquête sur la violation de données en est encore à ses débuts.

'Preliminary stages' refers to the very beginning of the process.

A joint investigation was launched by the two neighboring countries.

Une enquête conjointe a été lancée par les deux pays voisins.

'Joint' means two or more groups are working together.

The findings of the investigation were kept secret for national security.

Les conclusions de l'enquête ont été gardées secrètes pour la sécurité nationale.

'Findings' refers to the information discovered.

The committee concluded its investigation after six months of testimony.

Le comité a conclu son enquête après six mois de témoignages.

'Concluded' is a formal way to say 'finished'.

The investigation focused on the environmental impact of the oil spill.

L'enquête s'est concentrée sur l'impact environnemental de la marée noire.

'Focused on' indicates the main subject of the inquiry.

The investigation into the corporate fraud was exhaustive, spanning three continents.

L'enquête sur la fraude d'entreprise a été exhaustive, s'étendant sur trois continents.

'Exhaustive' means nothing was left out; it was completely thorough.

The integrity of the investigation was questioned due to a conflict of interest.

L'intégrité de l'enquête a été remise en question en raison d'un conflit d'intérêts.

'Integrity' refers to the honesty and fairness of the process.

The report provides a detailed investigation into the sociological causes of crime.

Le rapport fournit une enquête détaillée sur les causes sociologiques de la criminalité.

Here, investigation is used as an academic study.

The senator spearheaded the investigation into government overspending.

Le sénateur a mené l'enquête sur les dépenses excessives du gouvernement.

'Spearheaded' means to lead or initiate a movement or process.

The investigation was subject to intense public scrutiny and media coverage.

L'enquête a fait l'objet d'un examen public intense et d'une couverture médiatique.

'Subject to' means experiencing or being affected by something.

Any investigation of this magnitude requires significant financial resources.

Toute enquête de cette ampleur nécessite des ressources financières importantes.

'Of this magnitude' means of this great size or importance.

The investigation's scope was broadened to include previous years' records.

Le champ de l'enquête a été élargi pour inclure les dossiers des années précédentes.

'Scope' refers to the range or extent of the investigation.

A criminal investigation is a prerequisite for any formal charges being filed.

Une enquête criminelle est une condition préalable à l'engagement de toute poursuite formelle.

'Prerequisite' means something that must happen first.

The philosophical investigation into the nature of consciousness remains inconclusive.

L'enquête philosophique sur la nature de la conscience reste peu concluante.

Investigation here refers to a deep intellectual inquiry.

The veracity of the witness's statement was undermined by the subsequent investigation.

La véracité de la déclaration du témoin a été compromise par l'enquête ultérieure.

'Veracity' means truthfulness; 'undermined' means weakened.

The investigation was characterized by a meticulous adherence to procedural protocols.

L'enquête a été caractérisée par une adhésion méticuleuse aux protocoles de procédure.

'Meticulous adherence' means following rules very strictly.

The investigation into the systemic failures of the bank revealed a culture of greed.

L'enquête sur les défaillances systémiques de la banque a révélé une culture de l'avidité.

'Systemic failures' are problems that affect the whole organization.

He argued that the investigation was nothing more than a politically motivated witch-hunt.

Il a soutenu que l'enquête n'était rien de plus qu'une chasse aux sorcières motivée par des considérations politiques.

'Witch-hunt' is an idiom for an unfair investigation targeting a specific person.

The investigation's findings were so damning that the entire board resigned.

Les conclusions de l'enquête étaient si accablantes que l'ensemble du conseil d'administration a démissionné.

'Damning' means providing strong evidence of guilt or failure.

The investigation into the ancient ruins provided insights into a forgotten civilization.

L'enquête sur les ruines antiques a permis de mieux comprendre une civilisation oubliée.

Investigation can be used for archaeological research.

The complexity of the investigation necessitated the involvement of international experts.

La complexité de l'enquête a nécessité l'intervention d'experts internationaux.

'Necessitated' is a formal verb meaning 'made necessary'.

ترکیب‌های رایج

Conduct an investigation

Thorough investigation

Under investigation

Launch an investigation

Criminal investigation

Internal investigation

Preliminary investigation

Obstruct an investigation

Independent investigation

Ongoing investigation

عبارات رایج

In the course of the investigation

Subject to investigation

Pending investigation

Full-scale investigation

Scope of the investigation

Findings of the investigation

Call for an investigation

Cooperate with an investigation

Hamper an investigation

Conclude an investigation

اغلب اشتباه گرفته می‌شود با

investigation vs Investment

Investment is about putting money into something to get a profit. Investigation is about finding facts.

investigation vs Instigation

Instigation means starting or provoking something (usually something bad), while investigation is the act of looking into it.

investigation vs Interrogation

Interrogation is specifically the act of questioning a suspect, which is only one part of a larger investigation.

اصطلاحات و عبارات

"Leave no stone unturned"

To do a very thorough investigation and look everywhere for clues.

The detective promised to leave no stone unturned in his investigation.

Informal/Idiomatic

"Dig deep"

To investigate something very thoroughly to find hidden information.

The reporter had to dig deep to find the truth about the company.

Informal

"Follow the paper trail"

To investigate by looking at financial or written records.

The investigators followed the paper trail to catch the tax evader.

Professional

"Blow the whistle"

To report something illegal, which often starts an investigation.

He blew the whistle on the company's illegal dumping, triggering an investigation.

Informal

"Under the microscope"

Being watched or investigated very closely.

The new law is under the microscope as experts check for flaws.

Informal

"Open a can of worms"

To start an investigation that reveals many more complicated problems.

The investigation into the small bribe opened a can of worms.

Informal

"Connect the dots"

To see the relationship between different pieces of evidence in an investigation.

The detective finally connected the dots and solved the case.

Informal

"Smoking gun"

A piece of evidence that clearly proves someone is guilty.

The leaked email was the smoking gun the investigation needed.

Informal/Journalistic

"Skeletons in the closet"

Hidden secrets that an investigation might uncover.

The investigation revealed that the candidate had many skeletons in his closet.

Informal

"The tip of the iceberg"

A small part of a much larger problem revealed by an investigation.

This fraud case is just the tip of the iceberg; the investigation continues.

Informal

به‌راحتی اشتباه گرفته می‌شود

investigation vs Inquiry

They both mean searching for facts.

Inquiry is often more formal or official (like a government hearing), while investigation is the general process of gathering evidence.

The police investigation led to a public inquiry.

investigation vs Search

Both involve looking for something.

A search is usually looking for a physical object or person. An investigation is a systematic process to find the truth or a cause.

The search for the keys was quick, but the investigation into why they were moved took longer.

investigation vs Probe

Used as synonyms in news.

Probe is more informal and often used in journalism to describe a deep or uncomfortable investigation.

The media probe into the star's life was very intrusive.

investigation vs Audit

Both involve checking records.

An audit is specifically for financial records or checking if rules are followed. An investigation is broader.

The tax audit turned into a criminal investigation.

investigation vs Analysis

Both involve studying details.

Analysis is the thinking part (interpreting data), while investigation is the doing part (gathering the data).

After the investigation, they began the data analysis.

الگوهای جمله‌سازی

The [Noun] is an investigation.

The search is an investigation.

They are doing an investigation into [Noun].

They are doing an investigation into the theft.

An investigation was launched to [Verb].

An investigation was launched to find the cause.

[Noun] is currently under investigation for [Noun].

The company is currently under investigation for fraud.

A thorough investigation revealed that [Clause].

A thorough investigation revealed that the system was flawed.

The procedural integrity of the investigation was [Adjective].

The procedural integrity of the investigation was beyond reproach.

Academic

This investigation seeks to elucidate [Noun].

This investigation seeks to elucidate the roots of the problem.

Legal

Obstructing an investigation is a [Noun].

Obstructing an investigation is a serious offense.

خانواده کلمه

اسم‌ها

فعل‌ها

صفت‌ها

مرتبط

نحوه استفاده

frequency

Very common in news, law, and science.

اشتباهات رایج

The police are doing an investigate. → The police are conducting an investigation.
You cannot use the verb 'investigate' as a noun. You must use the noun form 'investigation'.
An investigation about the cause of the fire. → An investigation into the cause of the fire.
In English, the standard preposition used with investigation is 'into', not 'about'.
He is under investigation of fraud. → He is under investigation for fraud.
When describing the reason for the investigation, use the preposition 'for'.
The investigation revealed that the man is guilty. → The investigation revealed that the man was guilty.
Since the investigation is usually about a past event, the following clause should also be in the past tense.
I need to investigation this problem. → I need to investigate this problem.
Here you need the verb form 'investigate', not the noun form 'investigation'.

نکات

Use the right preposition

Always remember to use 'into' after investigation. 'An investigation into the matter' sounds much more natural than 'an investigation of the matter'.

Learn the collocations

Don't just learn the word; learn the verbs that go with it. 'Conduct', 'launch', and 'carry out' are your best friends when using 'investigation'.

Watch the 'i'

Many learners forget the 'i' after the 't'. Break the word into chunks: in-ves-ti-ga-tion. This will help you remember every letter.

Keep it formal

Use 'investigation' for serious matters. If you're just looking for your car keys, use 'search' to avoid sounding overly dramatic or sarcastic.

News keywords

When you hear 'investigation' on the news, listen for the words that follow. They will tell you the subject of the inquiry, usually starting with 'into'.

Vary your adjectives

Instead of always saying 'big investigation', try 'thorough', 'comprehensive', 'exhaustive', or 'wide-ranging' to make your writing more professional.

Stress the right syllable

The stress is on the 'ga' syllable. Say it out loud: in-ves-ti-GAY-shun. Getting the stress right makes you much easier to understand.

Broaden your usage

Remember that investigations aren't just for police. Use it for science projects, business problems, or academic research to show you understand its full range.

The Detective's Vest

Imagine a detective putting on a 'Vest' to go 'In' to a crime scene. In-Vest-i-ga-tion. This visual will help the word stick in your mind.

Under the microscope

If something is 'under the microscope', it is being investigated very closely. This is a great idiom to use alongside the word investigation.

حفظ کنید

روش یادسپاری

Think of 'In-Vest-I-Go'. I put on my detective 'Vest' and 'In' I 'Go' to find the truth. Investigation!

تداعی تصویری

Imagine a detective with a magnifying glass looking at a giant footprint. The footprint is the 'vestige' (root of investigation) that leads to the answer.

شبکه واژگان

Police Evidence Facts Clues Detective Report Truth Crime

چالش

Try to use 'investigation' in a sentence about a missing sandwich, a scientific discovery, and a police report. This helps you learn the different contexts.

ریشه کلمه

The word comes from the Latin word 'investigationem', which is a noun of action from the past-participle stem of 'investigare'. This Latin verb means 'to track' or 'to trace out'. It is composed of 'in-' (into) and 'vestigare' (to track footprints).

معنای اصلی: To track footprints or follow a trail.

Indo-European (Latin branch)

بافت فرهنگی

Be careful when using the word in workplace settings; calling for an 'investigation' into a colleague's work is very serious and can be seen as an accusation.

Commonly used in news and TV dramas. 'Investigative journalism' is highly respected in the US and UK.

The Sherlock Holmes stories by Arthur Conan Doyle. The TV show 'CSI: Crime Scene Investigation'. The 'Watergate' investigation that led to President Nixon's resignation.

تمرین در زندگی واقعی

موقعیت‌های واقعی

Crime

Crime scene investigation
Police investigation
Criminal investigation
Solve the investigation

Science

Scientific investigation
Experimental investigation
Research investigation
Laboratory investigation

Business

Internal investigation
Fraud investigation
Workplace investigation
Financial investigation

Journalism

Investigative report
Undercover investigation
Press investigation
Journalistic investigation

Medicine

Clinical investigation
Medical investigation
Diagnostic investigation
Patient investigation

شروع‌کننده‌های مکالمه

"Have you ever seen a real police investigation in your city?"

"What is the most interesting investigation you have ever read about in the news?"

"Do you think a private investigation is better than a police one?"

"If you were a detective, what kind of investigation would you like to lead?"

"Should the results of every government investigation be made public?"

موضوعات نگارش

Describe a time when you had to do a small investigation to find something you lost.

Write a short story about a detective who starts an investigation into a mysterious sound.

Do you think investigations into people's private lives are ever okay? Why or why not?

Explain why a thorough investigation is important after a car accident.

If you could launch an investigation into any mystery in history, what would it be?

سوالات متداول

10 سوال

Yes, it is countable. You can say 'one investigation' or 'many investigations'. For example, 'The police are working on three separate investigations right now.'

'Investigate' is a verb (the action), and 'investigation' is a noun (the process). You can say 'I will investigate the problem' or 'I will start an investigation into the problem'.

It is better to say 'investigation into'. While 'about' is sometimes used in casual speech, 'into' is the standard and more professional preposition used by native speakers.

It means that a person or organization is currently being checked by an authority (like the police or a committee) to see if they have done something wrong.

No, it can be used for science (scientific investigation), business (internal investigation), or even personal things (investigating a weird noise in your house).

The most common verbs are 'conduct', 'carry out', 'launch', 'initiate', 'complete', and 'conclude'. 'Conduct' is the most formal and frequent.

The plural is 'investigations'. You simply add an 's' to the end of the word.

Yes, it is a formal word. In casual conversation, people might say 'looking into it' or 'checking it out' instead of 'conducting an investigation'.

It is an investigation that uses scientific methods and techniques to solve crimes, such as DNA testing or fingerprint analysis.

Yes, a 'private investigation' is one conducted by a person or company that is not part of the government or police, like a private detective.