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interrogation point

noun
Also called interrogation mark.
Origin
1590-1600
1590-1600

question mark

noun
1.
Also called interrogation point, interrogation mark. a mark indicating a question: usually, as in English, the mark (?) placed after a question.
2.
something unanswered or unknown:
His identity is still a question mark to most of us.
3.
an anglewing butterfly, Polygonia interrogationis, having silver spots shaped like a question mark on the underside of each hind wing.
Origin
1865-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for interrogation mark

interrogation mark

noun
1.
a less common term for question mark

question mark

noun
1.
the punctuation mark ?, used at the end of questions and in other contexts where doubt or ignorance is implied
2.
this mark used for any other purpose, as to draw attention to a possible mistake, as in a chess commentary
3.
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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interrogation 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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Difficulty index for interrogation point

Few English speakers likely know this word

Word Value for interrogation

14
17
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