mystery (EN)
noun

noun “mystery”

sg. mystery, pl. mysteries or uncountable
  1. a puzzling or inexplicable occurrence or situation
    The disappearance of the ancient Mayan civilization remains a profound mystery to historians.
  2. a person or thing that arouses curiosity or intrigue because little is known about them
    The abandoned house at the end of the street is a mystery to all the kids in the neighborhood.
  3. a story focused on solving a crime or unraveling secrets, typically ending with a resolution that clarifies the enigmatic elements
    The stories of Sherlock Holmes are examples of mystery novels.
  4. (Catholicism) a significant event or sequence of events from the life of Jesus Christ
    During Mass, the priest reflected on the Glorious Mysteries, which include the Resurrection and the Ascension of Jesus.