interrogation in WordNet English dictionary

1. an instance of questioning
   "there was a question about my training"; "we made inquiries of all those who were present"
   question  inquiry  enquiry  query  interrogation 
   
2. formal systematic questioning
   interrogation  examination  interrogatory 
   
3. a sentence of inquiry that asks for a reply
   "he asked a direct question"; "he had trouble phrasing his interrogations"
   question  interrogation  interrogative  interrogative sentence 
   
4. a transmission that will trigger an answering transmission from a transponder
   interrogation