brightening

/B R AY1 T AH0 N IH0 NG/
verb
  1. 1

    To make bright or brighter in color.

    โ€œWe brightened the room with a new coat of paint.โ€

  2. 2

    To make illustrious, or more distinguished; to add luster or splendor to

  3. 3

    To make more cheerful and pleasant; to enliven

    โ€œto brighten one's prospects;โ€ƒ Having Mark around the place really brightens things up.โ€

  4. 4

    To grow bright, or more bright in color; to clear up

    โ€œThe sun starts to brighten around this time of the year.โ€ƒ The sky brightened as the storm moved on.โ€

  5. 5

    To become brighter or more cheerful in mood

    โ€œShe brightened when I changed the subject.โ€

  6. 6

    To make acute or witty; to enliven.

noun
  1. 1

    An instance of becoming brighter.

Source: https://en.wiktionary.org/wiki/brighten, https://en.wiktionary.org/wiki/brightening