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English definition of “stun”

stun

verb [T]     /stʌn/ (present participle stunning, past tense and past participle stunned)
SHOCK to shock or surprise someone very much: [often passive] Friends and family were stunned by her sudden death.Surprising and shockingMaking people sad, shocked and upset
MAKE UNCONSCIOUS to make a person or animal unconscious, usually by hitting them on the headSleep and sleeping
(Definition of stun verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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