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black hole - definition and synonyms


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noun [countable] black hole pronunciation in American English
Word Forms
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

sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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