English Dictionary

The act of interrogating or questioning; examination by questions; inquiry.
Source : opted (81862)  - auto

A question put; an inquiry.
Source : opted (81863)  - auto

A point, mark, or sign, thus [?], indicating that the sentence with which it is connected is a question. It is used to express doubt, or to mark a query. Called also interrogation point.
Source : opted (81864)  - auto