Synonyms|3Antonyms|0|Broader|0Narrower|0Related|0
0
espionage(noun, spying)
0
intelligence
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spying
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APASmart Define. (2011). underground activities thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/underground_activities/thesaurus/synonyms
ChicagoSmart Define. 2011. "underground activities thesaurus" https://smartdefine.org/underground_activities/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2011, underground activities thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/underground_activities/thesaurus/synonyms>.
MLASmart Define. "underground activities thesaurus" 21 May 2011. Web. 20 September 2026. <https://smartdefine.org/underground_activities/thesaurus/synonyms>