- Also called interrogation point, interrogation mark. a mark indicating a question: usually, as in English, the mark (?) placed after a question.
- something unanswered or unknown: His identity is still a question mark to most of us.
- an anglewing butterfly, Polygonia interrogationis, having silver spots shaped like a question mark on the underside of each hind wing.
Origin of question mark
First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for question mark
Aren't you afraid that when you die you'll change into a question-mark?Little Miss Grouch
Samuel Hopkins Adams
It has in it that element which he has described by a question-mark in his diagram, the element of forecast.Civics: as Applied Sociology
If Yorkburg had a coat of arms it ought to be a question-mark.Mary Cary
Kate Langley Bosher
We always went to church in the morning, and people were very kind, but it was kindness with a question-mark.The Gay Cockade
- the punctuation mark ?, used at the end of questions and in other contexts where doubt or ignorance is implied
- this mark used for any other purpose, as to draw attention to a possible mistake, as in a chess commentary
- an element of doubt or uncertainty
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A punctuation mark (?) that follows a direct question: “Is Ralph really seven feet tall?”
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.