interrogator n. + Add to list US //ˌɪnˈtɛɹəˌɡeɪtɝ// UK //ɪntˈɛɹəɡˌeɪtɐ// in·ter·roga·tor SynonymsEtymology Synonyms inquisitorOriginLATinterrogātor→ENinterrogator From Latin interrogātor. By surface analysis, interrogate + -or.