jab - definition and synonyms

noun [countable] 

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  1. 1
    a hard straight push with your finger, your elbow, or a narrow object
     Synonyms and related words
    1. a.
      in boxing, a short quick hit with a closed hand

      Mueller has a dangerous left jab.

  2. 2
    British an injection (=amount of medicine given through a needle) that is intended to stop you from getting a disease

    a flu jab

  3. 3
    a critical comment about someone
    jab at:

    In a sharp jab at the White House he said that the system relied on good faith and honour on both sides.