14 entries under idiom topic. ×
| top secret(noun, expression, adjective, sensitive) | |
| under wraps(expression, sensitive, secret, clandestine) | |
| off the record(expression, adjective, intimate, private) | |
| on the QT(expression, obscure, sensitive, private) | |
| under false pretense(expression, sensitive, clandestine, underground) | |
| behind the scenes(expression, personal, confidential, hush-hush) | |
| cloak and dagger(expression, obscure, unknown, unrevealed) | |
| for eyes only(expression, sensitive, sub-rosa) | |
| hush hush | |
| not for publication(expression, sensitive, secret, private) | |
| put in order | |
| under security restrictions(noun, expression, ranked) | |
| under the table(expression, sensitive, confidential, sub-rosa) | |
| with a lid on(expression, sensitive, sub-rosa) |
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| APA | Smart Define. (2015). classified thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/classified/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "classified thesaurus" https://smartdefine.org/classified/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, classified thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/classified/thesaurus/synonyms>. |
| MLA | Smart Define. "classified thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/classified/thesaurus/synonyms> |