94 entries under idiom topic. ×
| keep an eye out(verb, expression, mind, notice) | |
| keep in sight | |
| keep in view | |
| keep under observation | |
| look out for(verb, expression, phrasal verb, seek) | |
| make a reconnaissance | |
| pay attention to(verb, expression, mark, consider) | |
| play the spy | |
| put to the test(expression, study, consider, examine) | |
| put under surveillance | |
| set eyes on(verb, expression, phrasal verb, consider) | |
| spy satellite(expression, warning) | |
| take a gander(verb, expression, consider, see) | |
| take a look(expression, look, watch, eye) | |
| take notice of(verb, expression, mark, see) | |
| tune in on(expression, bug, poke, tap) | |
| watch secretly | |
| advanced guard(expression, warning) | |
| adventure film(expression, the drama) | |
| agent of espionage |
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| APA | Smart Define. (2016). spy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/spy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "spy thesaurus" https://smartdefine.org/spy/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, spy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/spy/thesaurus/synonyms>. |
| MLA | Smart Define. "spy thesaurus" 10 February 2016. Web. 27 September 2026. <https://smartdefine.org/spy/thesaurus/synonyms> |