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English definition of “jab”

jab

noun [C]     /dʒæb/
a quick hard push or hit : She gave me a sharp jab in the ribs with her elbow to stop me from saying any more. The boxer was floored by a punishing left jab.BoxingPushing and shoving UK informal an injection: a flu jab You'll need some jabs if you're going to Egypt.Medicine in different forms
(Definition of jab noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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