- Definitions|1
- Thesaurus|24
- Abbreviations|0
14 entries under noun topic. ×
| spying | |
| espionage(spy, sleeper, spying) | |
| surveillance | |
| detection | |
| eavesdropping | |
| espial | |
| following | |
| infiltration | |
| intelligence | |
| intelligence work | |
| secret service | |
| snooping(pursuance, meddling, officiousness) | |
| voyeurism | |
| wiretapping |
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| APA | Smart Define. (2013). undercover work thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/undercover_work/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "undercover work thesaurus" https://smartdefine.org/undercover_work/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2013, undercover work thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/undercover_work/thesaurus/synonyms>. |
| MLA | Smart Define. "undercover work thesaurus" 18 May 2013. Web. 27 September 2026. <https://smartdefine.org/undercover_work/thesaurus/synonyms> |