12 entries under secrets topic. ×

7
conundrums
5
puzzles(noun, complexities)
5
enigmas
5
riddles
3
codes
3
problems
2
ciphers
2
cryptograms
2
posers
1
brainteasers
1
labyrinths
1
mazes
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APASmart Define. (2013). mysteries thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mysteries/thesaurus/synonyms
ChicagoSmart Define. 2013. "mysteries thesaurus" https://smartdefine.org/mysteries/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, mysteries thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mysteries/thesaurus/synonyms>.
MLASmart Define. "mysteries thesaurus" 17 June 2013. Web. 29 September 2026. <https://smartdefine.org/mysteries/thesaurus/synonyms>