The meaning of SPY is to watch secretly usually for hostile purposes. How to use spy in a sentence.

Espionage, spying, or intelligence gathering, as a subfield of the intelligence field, is the act of obtaining secret, confidential, or in some way valuable information.

Phrasal verb spy on someone/something (Definition of spying from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Espionage is defined as the act of spying or using spies, agents, assets, and intelligence officers, as well as technology, to collect secret information, usually through illegal means.

1. To engage in espionage. 2. To investigate or observe something, especially in secret: spying into the neighbor's activities.

/ˈspaɪɪŋ/ IPA guide Other forms: spyings Definitions of spying noun keeping a secret or furtive watch see more

spy /spaɪ/ n., pl. spies, v., spied, spy•ing. a person employed by a government to obtain secret information or intelligence about another country, usually an enemy: Spies who are caught in time of …

Spying is the act or process of finding out secret information for a country or organization about other countries or organizations. ...a ten-year sentence for spying.

Spying, also known as espionage, is the act of secretly collecting and reporting information about the activities, movements, or plans of an individual, organization, or nation, usually for strategic, military, …

The practice of spying has a long history, dating back to ancient times when spies were used for military and political purposes. Today, spying is often associated with intelligence agencies and surveillance …