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English definition of “stealth”

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stealth

noun [U] uk   /stelθ/ us  
movement that is quiet and careful in order not to be seen or heard, or secret action: These thieves operate with terrifying stealth - they can easily steal from the pockets of unsuspecting travellers. It would seem that some politicians would prefer to use financial stealth rather than legislation to produce change. The weapons had been acquired by stealth.
stealthy
adjective uk   /ˈstel.θi/ us  
stealthy footsteps
stealthily
adverb uk   /ˈstel.θɪ.li/ us  
(Definition of stealth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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