noun

espionage

ES-pee-uh-nahzh/ˈespiənɑːʒ/

Spying to obtain secret information.

The spy conducts espionage by secretly observing the guarded building through binoculars.

A fictional spy covertly observes a guarded building through binoculars from a shadowed window, discreet information gathering, no tactical diagram or writing.
Etymology

The French word for a spy supplies the base. The activity ending shifts attention from the person to the practice of covertly gathering information.

In context

Al Jazeera English25:38
was sentenced to nearly 5 years in prison for spying for Chinese intelligence in what prosecutors called an especially serious case of espionage. A German court found that he collected information
Is the AfD a threat to Germany? Mehdi Hasan & Maximilian Krah | Head to Head

More examples

  • The company accuses a competitor of industrial espionage.
  • Investigators uncover an espionage network inside the military.
  • She faces espionage charges for passing classified documents to another country.

Similar words

spying
An everyday term that also covers snooping into private lives.
surveillance
Emphasizes systematic monitoring, not necessarily obtaining secret information.