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conscious

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adjective British English pronunciation: conscious /ˈkɒnʃəs/
  1. 1
    [not usually before noun] noticing that something exists or is happening and realizing that it is important
    conscious of:

    Teachers are increasingly conscious of the importance of the Internet.

    He was suddenly conscious of everyone looking at him.

    conscious (that):

    We are conscious that some people may not wish to work at night.

  2. 2
    [not usually before noun] awake and able to see, hear, and think

    The patient was fully conscious throughout the operation.

  3. 3
    [usually before noun] done deliberately by someone who knows what the effect will be

    I'm going to make a conscious effort to be more cheerful.

  4. 4
    [usually before noun] a conscious thought, memory, experience etc is one that you realize you are having

    She had no conscious memory of having met him before.

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