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adjective [only before noun] American English pronunciation: known /noʊn/
  1. 1
    used for describing something that people know about or have discovered

    a theory that fits the known facts

    The documents were delivered to his last known address.

    a disease with no known cure

    He was a violent man and a known drug user.

    Known pollutants had been tipped into the water.

  2. 2
    famous
    known for:

    They were known for their artistic achievements.

    nationally and internationally known TV personalities

    be/become known as something:

    Diana Spencer, or Princess Di as she became known

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