| Main Entry: | spy |
| Part of Speech: | noun |
| Definition: | person who secretly finds out about another's business |
Synonyms: |
agent, detective, double agent, emissary, espionage agent, foreign agent, informer, inside agent, intelligencer, investigator, lookout, mole, observer, operative, patrol, picket, plant*, scout, secret agent, secret service, sleeper, sleuth, snoop, spook, spotter, undercover agent, watcher |
| Main Entry: | double agent |
| Part of Speech: | noun |
| Definition: | spy for two nations |
Synonyms: |
counterspy, espionage agent, mole, plant, spy, undercover agent |