Audio (US) (file)
- Hyphenation: mys‧tery
- (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.
- (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.