Synonyms|88Antonyms|5|Broader|2Narrower|0Related|0

7 entries under secret topic. ×

6
underground(noun, subway, subversives)
5
Trojan horse(noun, expression, underground)
3
saboteurs(noun, opposition, agent, criminal)
3
subversives(noun, underground, subway)
2
collaborators(noun, underground)
2
collaborators of enemy(noun, expression, idiom, underground)
2
infiltrators(noun, underground, subversives)
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ChicagoSmart Define. 2015. "fifth column thesaurus" https://smartdefine.org/fifth_column/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, fifth column thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/fifth_column/thesaurus/synonyms>.
MLASmart Define. "fifth column thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/fifth_column/thesaurus/synonyms>