white-out

/W AY1 T AW0 T/
noun
  1. 1

    A heavy snowstorm; a blizzard.

  2. 2

    Any weather condition in which visibility and contrast are severely reduced by snow or sand causing the horizon and physical features of the terrain to disappear.

  3. 3

    Correction fluid (from the brand name Wite-Out).

  4. 4

    A sporting event where all in attendance are urged to wear white apparel.

  5. 5

    The simulated erasure of a file, etc. on a read-only volume.

  6. 6

    The suppression of a story by the media, analogously to deleting information with correction fluid.

  7. 7

    The silencing of voices and perspectives other than those of white men.

Source: https://en.wiktionary.org/wiki/white-out, https://en.wiktionary.org/wiki/whiteout