01 n. The act or process of interrogating or questioning; examination by questions; an instance of interrogating; inquiry.
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1.
The act or process of interrogating or questioning; examination by questions; an instance of interrogating; inquiry.
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2.
A question put; an inquiry.
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3.
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. Usually called a question mark; called also interrogation point. Also: question mark, interrogation point