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question mark

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
1865-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for question-mark
Historical Examples
  • We always went to church in the morning, and people were very kind, but it was kindness with a question-mark.

    The Gay Cockade Temple Bailey
  • 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.

  • If Yorkburg had a coat of arms it ought to be a question-mark.

    Mary Cary Kate Langley Bosher
British Dictionary definitions for question-mark

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
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question-mark in Culture

question mark definition

A punctuation mark (?) that follows a direct question: “Is Ralph really seven feet tall?”

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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