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English definition of “mortal sin”

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mortal sin

noun [C usually singular] uk   us  
in the Roman Catholic religion, an action that is so bad that you will be punished for ever after your death if you do not ask God to forgive you
Translations of “mortal sin”
in Chinese (Traditional) (天主教中的)彌天大罪…
in Chinese (Simplified) (天主教中的)弥天大罪…
(Definition of mortal sin from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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