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English definition of “burn out”

burn out

phrasal verb with burn     /bɜːn/ verb (past tense burned or UK also burnt)
if something such as a machine burns out, it stops working because of damage from heat: It looks like the starter motor on the car has burned out.
HR to become too tired or unable to work, because of working too hard: The relentless pressure to make money means traders burn out fast.
(Definition of burn out from the Cambridge Business English Dictionary © Cambridge University Press)
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