6 entries under expression topic. ×
| barrier of secrecy | |
| dead air(calm, quiet, speech, silence) | |
| oath of secrecy | |
| seal of secrecy | |
| veil of secrecy | |
| onetime european barrier |
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| APA | Smart Define. (2015). iron curtain thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/iron_curtain/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "iron curtain thesaurus" https://smartdefine.org/iron_curtain/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, iron curtain thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/iron_curtain/thesaurus/synonyms>. |
| MLA | Smart Define. "iron curtain thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/iron_curtain/thesaurus/synonyms> |