spying

Plural: spyings

Noun

• keeping a secret or furtive watch
• the act of keeping a secret watch for intelligence purposes
• the act of detecting something; catching sight of something
• espionage; the act of secretly gathering information

Verb

• catch sight of
• watch, observe, or inquire secretly
• catch sight of; to perceive with the eyes
• secretly collect sensitive or classified information; engage in espionage
• present participle and gerund of spy

Synonyms

catching, descry, detection, espial, espy, sight, sleuth, snoop, spot, spotting, spy, stag, undercover work