What is the meaning of question mark?

noun

  • A punctuation mark (?) placed at the end of a sentence to indicate a question.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). question mark. Retrieved September 20, 2026, from http://smartdefine.org/question_mark/definitions/1217803
ChicagoWordNet. 2010. "question mark" http://smartdefine.org/question_mark/definitions/1217803 (accessed September 20, 2026).
HarvardWordNet 2010, question mark, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/question_mark/definitions/1217803>.
MLAWordNet. "question mark" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/question_mark/definitions/1217803>