Definition of spyware noun from the Oxford Advanced Learner's Dictionary

 

spyware

 noun
noun
BrE BrE//ˈspaɪweə(r)//
 
; NAmE NAmE//ˈspaɪwer//
 
[uncountable]
 
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software that enables somebody to obtain secret information about somebody else and their computer activities without their knowledge or permission Hackers can install spyware to get all your passwords. see also malware