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underground activities
noun as in espionage
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Example Sentences
Did he tell you that Leon could help in the underground activities in which you were presumably engaged?
There were open revolts in the towns and villages; underground activities were growing within the Bulgarian army itself.
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On this page you'll find 9 synonyms, antonyms, and words related to underground activities, such as: intelligence, reconnaissance, shadowing, tailing, secret service, and undercover operations.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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