brightnesses

/B R AY1 T N AH0 S AH0 Z/
noun
  1. 1

    The quality of being bright.

  2. 2

    The perceived luminance of an object.

  3. 3

    Intelligence, cleverness.

Source: https://en.wiktionary.org/wiki/brightness, https://en.wiktionary.org/wiki/brightnesses