spy is the dictionary form of spyer Definition of spy
spy has definitions from the field of military |
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[ noun ] (military) a secret agent hired by a state to obtain (military) information about its enemies or by a business to obtain industrial secrets from competitors
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[ noun ] a secret watcher; someone who secretly watches other people
Examples "my spies tell me that you had a good time last night" |
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[ verb ] secretly collect sensitive or classified information; engage in espionage
Examples "spy for the Russians" |
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