Information gathering synonyms | nouns

Synonyms for Information gathering as a Noun

• surveillance
• spying
• espionage
• observation
• reconnaissance
• infiltration
• humint
• census
• undercover work
• black operations
• recon
• black ops
• tally
• count
• 

  register
• fact finding
• counter-intelligence
• cyberespionage
• military operation
• operation