Nouns

(n)question, interrogation, interrogative, interrogative sentencea sentence of inquiry that asks for a reply“he asked a direct question”, “he had trouble phrasing his interrogations”
(n)interrogationa transmission that will trigger an answering transmission from a transponder
(n)interrogation, examination, interrogatoryformal systematic questioning
(n)question, inquiry, enquiry, query, interrogationan instance of questioning“there was a question about my training”, “we made inquiries of all those who were present”