83 entries under idiom topic. ×
| on sure ground(expression, safety) | |
| open sesame(expression, indication) | |
| out of danger(expression, safety) | |
| personal security | |
| promissory note | |
| protective cover | |
| protective covering | |
| quiet air | |
| quiet colors | |
| rain or shine(noun, expression, support, pledge) | |
| real security | |
| release valve(expression, safety) | |
| safety valve(expression, safety) | |
| second mortgage(expression, lending) | |
| sniffing valve(expression, safety) | |
| something lined | |
| stock certificate | |
| take a lease | |
| too much of a good thing(expression, luxury, extravagance, lavishness) | |
| trade protection |
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| APA | Smart Define. (2016). security thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/security/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "security thesaurus" https://smartdefine.org/security/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, security thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/security/thesaurus/synonyms>. |
| MLA | Smart Define. "security thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/security/thesaurus/synonyms> |