- Definitions|2
- Thesaurus|226
- Abbreviations|0
9 entries under expression topic. ×
| secret writing(noun, idiom) | |
| secret language | |
| sixty-four-thousand-dollar question(difficulty, question, secret, puzzle) | |
| tough nut to crack(idiom, question, secret, puzzle) | |
| closed book(difficulty, question, secret, puzzle) | |
| enciphered data | |
| secret code | |
| secret message(noun, code) | |
| written material |
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| APA | Smart Define. (2015). cryptogram thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/cryptogram/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cryptogram thesaurus" https://smartdefine.org/cryptogram/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, cryptogram thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/cryptogram/thesaurus/synonyms>. |
| MLA | Smart Define. "cryptogram thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/cryptogram/thesaurus/synonyms> |