brighteners

/ˈbraɪtənərz/
noun
  1. Substances or products that make something look brighter, cleaner, or more vivid, especially in laundry or cleaning.
    • The cleaning solution includes brighteners to restore the shine on old tiles.
    • She added a liquid brightener to the wash to keep her white shirts looking new.
    • Some laundry detergents contain optical brighteners that make colors appear more vibrant.
  2. Things that make a situation more cheerful or positive.
    • Her surprise visit was one of the brighteners of an otherwise dull week.
    • Small acts of kindness can be real brighteners in someone's day.
    • The garden's bright flowers were natural brighteners for anyone feeling sad.
What does "brighteners" mean? | whatsthatwordmean | whatsthatwordmean