bn:00019934n
Noun Concept
EN
mystery  enigma  secret  closed book
EN
Something that baffles understanding and cannot be explained WordNet 3.0
Definitions
Examples
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EN
Something that baffles understanding and cannot be explained WordNet 3.0 & Open English WordNet
Something secret or unexplainable. OmegaWiki
EN
How it got out is a mystery WordNet 3.0 & Open English WordNet
It remains one of nature's secrets WordNet 3.0 & Open English WordNet
WordNet 3.0 & Open English WordNet
OmegaWiki
EN