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English definition of “cracker”

cracker

noun [S] (GOOD THING)    /ˈkræk.ər/ US  // UK informal
a person or thing that is very good or has a special exciting quality: She's written five books, and every one is a cracker.Good and excellent things
(Definition of cracker noun (GOOD THING) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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