A question, especially one addressed to an official or organization. The customer submitted a query about the new product's features.
A request for information from a database. The IT specialist ran a query to retrieve the sales data from the database.
A doubt in the mind; a mental reservation. She had a query about the accuracy of the report.
A question mark (?) inserted in a text by an editor or proof-reader to signal doubt or call for clarification. The copy-editor placed a query beside the date, unsure whether it was correct.