- Definitions|1
- Thesaurus|860
- Abbreviations|0
26 entries under warning topic. ×
| spy(adjective, secret, hidden, covert) | |
| mole | |
| advanced guard(expression, idiom) | |
| bandog | |
| beacon | |
| bivouac | |
| housedog | |
| indication of locality(expression, idiom) | |
| lighthouse | |
| lookout | |
| patrol | |
| patrolman | |
| picket | |
| plainclothesman | |
| rear guard(expression, idiom) | |
| scout | |
| sentinel | |
| sentry | |
| signal post(expression, idiom) | |
| spial |
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| APA | Smart Define. (2015). undercover thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/undercover/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "undercover thesaurus" https://smartdefine.org/undercover/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, undercover thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/undercover/thesaurus/synonyms>. |
| MLA | Smart Define. "undercover thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/undercover/thesaurus/synonyms> |