interrogationin‧ter‧ro‧ga‧tion /ɪnˈterəɡeɪʃən/ ●○○ noun [countable, uncountable] 
a long interrogation Under interrogation, he admitted that he had taken the money.
THESAURUS
a meeting in which someone is asked questions, to find out if they are suitable for a job, or to help the police find out about a crime. Also used about someone being asked questions on TV, in a newspaper, in a magazine etc: · I’ve got another job interview tomorrow.· Since the police interview, she had changed her statement.· an interview with Keith Richards
an occasion when someone is asked a lot of questions for a long time in order to get information, sometimes using threats, usually by the police or the army: · He claims he was tortured during his interrogation.· Police interrogation methods have been questioned.
an occasion when someone is asked questions about what they have just said, in order to see if they are telling the truth, especially in a court of law: · Under cross-examination, the only witness said she could not be sure about what she saw.
a meeting with a doctor or an expert to discuss treatment or to get advice: · The therapist charges $100 for a half hour consultation.· Would you like to come back for another consultation?
a formal meeting with a very important person: · He was granted an audience with the Pope.
COLLOCATIONS FROM THE ENTRY Under interrogation, he admitted that he had taken the money.COLLOCATIONS FROM OTHER ENTRIES
the process of interrogating someone: Under interrogation, he admitted that he had taken the money. (=answer questions from the police)· Mrs White underwent 20 hours of questioning, and admitted nothing.
a long interrogation Under interrogation, he admitted that he had taken the money.