14 entries under noun topic. ×
| sleeper | |
| Margarete Gertrud Zelle | |
| Mata Hari | |
| counterspy | |
| double agent | |
| espionage agent | |
| foreign agent | |
| infiltrator | |
| mole | |
| shadow | |
| shadower | |
| snoop | |
| snooper | |
| tail |
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| APA | Smart Define. (2016). spy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/spy/thesaurus/narrower |
| Chicago | Smart Define. 2016. "spy thesaurus" https://smartdefine.org/spy/thesaurus/narrower (accessed September 28, 2026). |
| Harvard | Smart Define 2016, spy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/spy/thesaurus/narrower>. |
| MLA | Smart Define. "spy thesaurus" 10 February 2016. Web. 28 September 2026. <https://smartdefine.org/spy/thesaurus/narrower> |