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tonic

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noun British English pronunciation: tonic /ˈtɒnɪk/ 
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singulartonic
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Related dictionary definitions

  1. 1

    tonic

    or

    tonic water

    [countable/uncountable] a type of fizzy water (=with gas in it) with a bitter taste, often mixed with a strong alcoholic drink, or a glass of this drink

    a gin and tonic

    a vodka tonic

  2. 2
    [singular] something that makes you feel happier or healthier

    This holiday has been the perfect tonic for you.

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