Synonyms of mole

mole

noun

as in spy

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

Synonyms & Similar Words

• spy
• operative
• agent
• undercover
• emissary
• undercover agent
• informer
• secret agent
• asset
• spook
• intelligencer
• sleeper
• stool pigeon
• courier
• infiltrator
• counterspy
• double agent
• spymaster
• superspy