The Oxford Thesaurus An A-Z Dictionary of Synonyms - query n.

1) question, inquiry or enquiry: The information office will answer any query you may have about social security benefits. 2) doubt, uncertainty, scepticism, reservation, problem: She wants to see the manager about some query concerning her bank balance. --v. 3) ask (about) , inquire or enquire (about) , question; challenge, doubt, dispute: I am writing to query the third item on your latest bill.