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heck

exclamation, noun
 
 
/hek/ informal

Definition

an expression of usually slight anger or surprise, or a way of adding force to a statement, question, etc.: Oh heck! It's later than I thought. Where the heck have you been?InterjectionsSounds used as interjections
(Definition of heck exclamationnoun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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