as in spies
a person who tries secretly to obtain information for one country in the territory of another usually unfriendly country
for years we have had a mole in the enemy's national intelligence agency
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“Moles.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/moles. Accessed 1 May. 2025.
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