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
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for question markconundrum
Examples from the Web for question mark
Historical Examples of question mark
Aren't you afraid that when you die you'll change into a question-mark?
It has in it that element which he has described by a question-mark in his diagram, the element of forecast.
If Yorkburg had a coat of arms it ought to be a question-mark.
We always went to church in the morning, and people were very kind, but it was kindness with a question-mark.
British Dictionary definitions for question mark
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.