Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun interrogation

4 senses of interrogation

Sense 1
question, interrogation, interrogative, interrogative sentence -- (a sentence of inquiry that asks for a reply; "he asked a direct question"; "he had trouble phrasing his interrogations")
       => sentence -- (a string of words satisfying the grammatical rules of a language; "he always spoke in grammatical sentences")

Sense 2
interrogation -- (a transmission that will trigger an answering transmission from a transponder)
       => transmission -- (communication by means of transmitted signals)

Sense 3
interrogation, examination, interrogatory -- (formal systematic questioning)
       => questioning, inquiring -- (a request for information)

Sense 4
question, inquiry, enquiry, query, interrogation -- (an instance of questioning; "there was a question about my training"; "we made inquiries of all those who were present")
       => questioning, inquiring -- (a request for information)