investigator
gb/ɪnvˈɛstəɡˌeɪtɚ/ us/ɪnvˈɛstəɡˌeɪtɚ/
B2
อังกฤษ
~ 8100
ความหมาย
0 ความหมาย
คำนาม
B2
entity
1
person who investigates crimes or problems
A person whose job is to look for the facts about a crime, accident, or other serious problem.
รูปแบบการใช้:
an investigator [into/of] [something]
ข้อผิดพลาดที่พบบ่อย:
Learners sometimes confuse "investigator" with "investor." An investor puts money into a business to make a profit, while an investigator looks for facts about a case or problem. Learners may also overuse "detective"; use "investigator" in more formal, news, or official contexts, especially when it may not be only about crimes.
คำพ้องความหมาย
detective (Usually refers to someone in the police or a private agent who investigates crimes specifically.)
|
inspector (Often a police rank or official who checks things; overlaps when they are responsible for investigating cases.)
|
examiner (Focuses more on carefully checking or analyzing evidence or documents than on running a whole investigation.)
คำตรงข้าม
suspect (The person who is being investigated in connection with a crime, not the person doing the investigation.)
คำที่ใช้ร่วมกัน
police investigator
|private investigator
|lead investigator
|homicide investigator
|independent investigator
|case investigator
หัวข้อ
law
|crime
|work
|government
|core_vocabulary
ตัวอย่าง
- The lead investigator said that new evidence had been found at the crime scene.
- Independent investigators were hired to look into the company’s safety practices after the accident.
- A private investigator followed the man for weeks before reporting back to her client.
- Federal investigators are trying to determine what caused the plane to crash.
- The report was based on interviews conducted by an investigator from the human rights organization.
ตัวอย่างสำหรับผู้เรียน
- The police sent an investigator to talk to the neighbors.
- An investigator asked many questions about the fire.
- Her family hired a private investigator to find her lost brother.
- The government chose an independent investigator to study the problem.
- The investigator looked carefully at every part of the scene.
คำนาม
technical
C1
entity
2
researcher in charge of a study
A scientist or researcher who plans and leads a scientific or medical study.
รูปแบบการใช้:
an investigator [in/on] [a study/trial/project]
ข้อผิดพลาดที่พบบ่อย:
Learners may not realize that in scientific and medical writing, "investigator" often means a researcher, not someone who looks into crimes. In this context, "investigator" is close to "researcher" and is commonly used in phrases like "principal investigator" and "clinical investigator."
คำพ้องความหมาย
researcher (General word for a person who does research; "investigator" is more formal and often used in medical or scientific studies.)
|
scientist (Broader term for someone working in science; not all scientists are investigators on a specific study.)
|
principal investigator (More specific term for the main investigator who has official responsibility for the study.)
คำตรงข้าม
subject (In research, the subject is the person or thing being studied, not the person who runs the study.)
คำที่ใช้ร่วมกัน
principal investigator
|co-investigator
|clinical investigator
|study investigator
|trial investigator
หัวข้อ
science
|medicine
|research
|education
|health
ตัวอย่าง
- The principal investigator will review all the data before the results are published.
- Clinical investigators must follow strict ethical guidelines when working with patients.
- Each site investigator reported the trial outcomes to the central research team.
- The investigators concluded that the new treatment was safe but only slightly more effective than the standard therapy.
- Grant money will be given to early-career investigators working on climate change research.
ตัวอย่างสำหรับผู้เรียน
- The investigator in this study works at a big hospital.
- All investigators must explain the risks to the patients.
- The investigator wrote a report about the results.
- Two investigators worked together on the project.
- The main investigator answered questions from the students.
ไวยากรณ์
รูปคำในพจนานุกรม
investigator
IPA
GB/ɪnvˈɛstəɡˌeɪtɚ/
US/ɪnvˈɛstəɡˌeɪtɚ/
พยางค์และการเน้นเสียง
in - vest - ig - at - or (5 พยางค์)
Stress on 2nd syllable (vest)
รูปคำ
Noun
- Base: investigator
- Plural: investigators
กลุ่มคำที่เกี่ยวข้อง
Forms
investigators
noun
Core family
Negative and opposite forms
uninvestigated
adjective
Advanced or less common
investigatory
adjective
วลีและสำนวน
lead investigator
1/lˈid ɪnvˈɛstəɡˌeɪtɚ/
fixed phrase
main person directing an investigation
The main person in charge of an investigation, who directs the work and makes key decisions.
ตัวอย่าง
- The lead investigator briefed reporters on the progress of the case.
- Police named Detective Harris as the lead investigator in the kidnapping.
- As lead investigator, she coordinated the work of several different teams.
private investigator
1/pɹˈaɪvɪt ɪnvˈɛstəɡˌeɪtɚ/
fixed phrase
non-police professional investigator for hire
A person who is not a police officer but is paid by people or companies to find facts about personal or business problems.
ตัวอย่าง
- They hired a private investigator to find out if the company was stealing their ideas.
- In many movies, the main character is a tough private investigator who works alone.
- The lawyer suggested using a private investigator to track down the missing witness.
principal investigator
1/pɹˈɪnsəpəl ɪnvˈɛstəɡˌeɪtɚ/
fixed phrase
technical
Lead researcher on a project
The main person responsible for a research project, often for a grant.
ตัวอย่าง
- Dr. Lee is the principal investigator for the cancer study.
- The principal investigator submitted the final report to the funding agency.
- Funding will be sent to the university through the principal investigator.
- As principal investigator, she is responsible for how the grant money is used.
- The ethics board asked the principal investigator to clarify the study’s risks.