mystery

Pronunciation

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• Hyphenation: mys‧tery

Noun

Singular mystery

Plural mysteries

1. (countable & uncountable) A mystery is a secret or hidden matter which can't be explained.

   She never told me where the money was, and it remains a mystery to me even now.

   She and her mystery man were seen outside her parents' home.

2. (countable & uncountable) A mystery is a story about a puzzling event: short for mystery story.

   The police investigation has failed to solve the murder mystery.