185 entries under expression topic. ×
| secretly follow(verb, discover, eyeball, pry) | |
| signal post(idiom, warning) | |
| skin flick(idiom, the drama) | |
| special agent | |
| special assignment | |
| special correspondent(idiom, messenger) | |
| spy plane(idiom, warning) | |
| squint at(verb, look, scrutinize, stare) | |
| steal a glance | |
| steer clear of(idiom, mind, avoid, heed) | |
| subsonic aircraft(idiom, ship) | |
| supersonic aircraft(idiom, ship) | |
| take care(verb, mind, notice, spot) | |
| take heed(mind, avoid, heed) | |
| take in the sights(verb, idiom, study, consider) | |
| take into consideration(verb, idiom, mark, see) | |
| take note of(verb, idiom, note, regard) | |
| tell on(verb, phrasal verb) | |
| think about(verb, consider, regard, perceive) | |
| under cover(adjective, secret, covert, undercover) |
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| APA | Smart Define. (2016). spy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/spy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "spy thesaurus" https://smartdefine.org/spy/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, spy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/spy/thesaurus/synonyms>. |
| MLA | Smart Define. "spy thesaurus" 10 February 2016. Web. 23 September 2026. <https://smartdefine.org/spy/thesaurus/synonyms> |