What does "query" mean?

Additional senses

1. 2.An interrogation point [] as the sign of a question or a doubt.
2. 3.To ask questions; to make inquiry. Each prompt to query, answer, and debate. Pope.
3. 4.To have a doubt; as, I query if he is right.
4. 5.To put questions about; to elicit by questioning; to inquire into; as, to query the items or the amount; to query the motive or the fact.
5. 6.To address questions to; to examine by questions.
6. 7.To doubt of; to regard with incredulity.
7. 8.To write " query" (qu., qy., or ) against, as a doubtful spelling, or sense, in a proof. See Quære.