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black hole - definition and synonyms

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noun [countable]     black hole pronunciation in American English
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singularblack hole
pluralblack holes
  1. 1
    astronomy an area in outer space where the force of gravity is so strong that light and everything else around it is pulled into it
  2. 2
    informal a situation in which large amounts of money are spent without bringing any benefits

    The business was little more than a financial black hole.

  3. 3
    informal a situation in which there is a lot of sadness and very little hope
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moonbow

a rainbow produced when water droplets in the air reflect light from the moon rather than the sun

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Open Dictionary

platform capitalism

a way of doing business that involves recruiting large numbers of people who work for themselves using the company's platform, as used by companies such as Uber, Deliveroo and the like

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