Word.ws English Dictionary

brightener

brightener noun: one who or that which brightens.

Noun

brightener (plural brighteners)

  1. One who or that which brightens.
    • Country air in the fields, or in gardens, when breathed at proper hours, is an excellent bracer of the nerves, and a sure brightener of the complexion.1830, The Mirror of the Graces: Or, The English Lady's Costume, page 27
    • Chirol's own advice was simple: get the Russian agreement signed. March, month of change, brightener of days and moods, brought that action notably closer.2006, Linda Fritzinger, Diplomat Without Portfolio: Valentine Chirol, His Life and "The Times"
  2. A chemical agent that absorbs ultraviolet and violet light and re-emits blue light by fluorescence, used to make fabric or paper look whiter.
  3. Any substance added to an electrolytic bath to yield a brighter electroplated surface.

Forms of brightener

pluralbrighteners

Origin of brightener

From brighten + -er.

Questions about brightener

What does brightener mean?
Brightener means one who or that which brightens.
What part of speech is brightener?
Brightener is a noun.
What is the plural of brightener?
The plural of brightener is brighteners.

Words near brightener in the dictionary

  1. brighten
  2. brighten up
  3. brightenable
  4. brightened
  5. brightened up
  6. brightener
  7. brighteners
  8. brightenest
  9. brighteneth
  10. brightening
  11. brightening up

Source and license

Adapted from Wiktionary: brightener (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “brightener.” Word.ws, https://word.ws/brightener. Based on Wiktionary, CC BY-SA 4.0.