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spy:

The noun spy has 2 senses (first 1 from tagged texts)

1. (3) spy, undercover agent -- ((military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors)
2. spy -- (a secret watcher; someone who secretly watches other people; "my spies tell me that you had a good time last night")

The verb spy has 4 senses (first 2 from tagged texts)

1. (2) descry, spot, espy, spy -- (catch sight of)
2. (2) spy, stag, snoop, sleuth -- (watch, observe, or inquire secretly)
3. spy, sight -- (catch sight of; to perceive with the eyes; "he caught sight of the king's men coming over the ridge")
4. spy -- (secretly collect sensitive or classified information; engage in espionage; "spy for the Russians")

surveillance:

The noun surveillance has 1 sense (first 1 from tagged texts)

1. (2) surveillance -- (close observation of a person or group (usually by the police))

equipment:

The noun equipment has 1 sense (first 1 from tagged texts)

1. (48) equipment -- (an instrumentality needed for an undertaking or to perform a service)

spy surveillance equipment

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Irelands leading supplier of night vision equipment, covert camera and quality UHF crystal controlled bugging/eavesdropping equipment. Secure on-line ordering, world-wide dispatch.
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