An interview is a conversation where somebody is trying to get information from another person. The person asking questions is the interviewer and the person answering questions is the interviewee.
In companies, interviews are generally conducted to test the interviewee, check their knowledge, examine their skills, behavior and attitude, and many other aspects that are required to fulfill organizational needs. Employers interview people trying to get a job to find out if they are a good person for the job. Researchers use an interview to ask people to find how they feel or what they know about something. Since the middle 19th century, interviews have often been used in journalism to get information for stories on news shows or in newspapers.
Police interview witnesses to a crime to find out what happened. Military intelligence agents interview prisoners to learn about enemy plans and capabilities. These interviews are often called interrogation.