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high

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noun British English pronunciation: high /haɪ/ 
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singularhigh
pluralhighs
  1. 1
    [countable] a period or situation in which something reaches its highest level
    reach a high:

    Temperatures today are expected to reach a high of 30 degrees.

    a new/all-time/record high:

    Attendances at football matches are at an all-time high.

  2. 2
    [uncountable] a high temperature in an oven or heating system

    Put the mixture in the microwave and cook on high for 30 seconds.

  3. 3
    [countable] a feeling of great happiness or excitement

    They've experienced both the highs and the lows of married life.

    on a high:

    The kids are on a high for days when the exams are over.

phrase

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