noun
a punctuation mark indicating a question or doubt, such as a question mark or a raised eyebrow
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The speaker used a percontation mark at the end of his question to denote uncertainty.
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I always get confused between a percontation mark and a question mark.
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Why did you put a percontation mark there? Are you unsure or something?
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Her percontation mark at the end of the sentence added a layer of mystery to her words.