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  1. Dictionary
    Twitch
    /twiCH/

    verb

    noun

    • 1. a short, sudden jerking or convulsive movement: "his mouth gave a slight twitch" Similar spasmconvulsive movementconvulsionjerk
    • 2. a stick with a small noose attached to one end. The noose may be twisted around the upper lip or the ear of a horse to subdue it, especially during veterinary procedures.