Spy

v. work for a government as a spy, provide secret information about another country; secretly investigate and gather information about other people; see, look, observe; examine

n. person who is employed by a government to gather information on other countries, secret agent; person who secretly investigates and gathers information about other people

SPY may refer to: SPY (spiders), ticker symbol for Standard & Poor's Depository ReceiptsSPY (magazine), a satirical monthly, trademarked all-capsSPY (Ivory Coast), airport code for San Pédro, Côte d'IvoireSPY (Ship Planning Yard), a U.S. Navy acronymSPY, short for MOWAG SPY, a military vehicleSPY ACT (Securely Protect Yourself Against Cyber Trespass), a 2005 cyber-security regulation proposal
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<references /> Espionage (a word from [Latin language|Latin espionnage) or spying is a practice of obtaining information about an organization or a society that is considered secret or confidential without the permission of the holder of the information. Unlike other forms of intelligence work, espionage involves accessing the place where the desired information is stored, or accessing the people who know the information and will divulge it through some kind of subterfuge.It also can be used as a general term to describe spying activities.
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Noun
1. (military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors
(synonym) undercover agent
(hypernym) secret agent, intelligence officer, intelligence agent, operative
(hyponym) counterspy, mole
(classification) military, armed forces, armed services, military machine, war machine
2. a secret watcher; someone who secretly watches other people; "my spies tell me that you had a good time last night"
(hypernym) spectator, witness, viewer, watcher, looker
(hyponym) snoop, snooper
Verb
1. catch sight of
(synonym) descry, spot, espy
(hypernym) sight
(derivation) detection, catching, espial, spying, spotting
2. watch, observe, or inquire secretly
(synonym) stag, snoop, sleuth
(hypernym) monitor, supervise, ride herd on
(entail) investigate, inquire, enquire
(derivation) undercover agent
3. secretly collect sensitive or classified information; engage in espionage; "spy for the Russians"
(hypernym) investigate, inquire, enquire

(v. t.)
To gain sight of; to discover at a distance, or in a state of concealment; to espy; to see.
  

(v. t.)
To explore; to view; inspect; and examine secretly, as a country; -- usually with out.
  

(v. t.)
To discover by close search or examination.
  

(v. i.)
To search narrowly; to scrutinize.
  

(n.)
One who keeps a constant watch of the conduct of others.
  

(n.)
A person sent secretly into an enemy's camp, territory, or fortifications, to inspect his works, ascertain his strength, movements, or designs, and to communicate such intelligence to the proper officer.
  

A person who acts clandestinely or on false pretences to endeavour to obtain information of or within another state with the intention of communicating or selling it to others. - (read more on Spy)