question mark

[kwes-chuhn mahrk]

noun

1. Also called interrogation point. Also called interrogation mark. a punctuation 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 a silver marking that resembles a question mark on the underside of each hindwing.

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

question mark

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

Word History and Origins

Origin of question mark¹

First recorded in 1865–70

Related Words

• conundrum 
• puzzle