10 entries under expression topic. ×
| cloak and dagger(idiom, open) | |
| closed book(noun, abstruseness, inscrutableness, rebus) | |
| confidential information(noun, abstruseness, inscrutableness, rebus) | |
| in on | |
| magic number(noun, abstruseness, inscrutableness, rebus) | |
| not for publication(idiom, open) | |
| privileged information(noun, abstruseness, inscrutableness, rebus) | |
| skeleton in cupboard(noun, idiom, abstruseness, inscrutableness) | |
| tough nut to crack(noun, idiom, abstruseness, inscrutableness) | |
| under assumed name(idiom, openly) |
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| APA | Smart Define. (2015). known thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/known/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "known thesaurus" https://smartdefine.org/known/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, known thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/known/thesaurus/antonyms>. |
| MLA | Smart Define. "known thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/known/thesaurus/antonyms> |