investigation
word
Definition
An investigation is a careful process of trying to find facts, causes, or the truth about something. It is often done by police, journalists, scientists, or organizations after a crime, problem, accident, or unusual event.
Usage & Nuances
Common collocations are 'conduct an investigation', 'launch an investigation', 'under investigation', and 'ongoing investigation'. It is more formal than 'look into' and is used in police, legal, journalistic, workplace, and scientific contexts. Do not confuse it with 'research': 'research' is usually broader and academic, while 'investigation' often focuses on a specific case or incident.
Example Sentences
The investigation showed that the machine was old and unsafe.
basic
The police started an investigation after the fire.
basic
The school is doing an investigation into the missing laptops.
basic
They're keeping details private while the investigation is ongoing.
natural
What started as a simple complaint turned into a full investigation.
natural
The article raised enough questions to trigger an official investigation.
natural