Dictionary.com
Thesaurus.com
Synonyms

brighten

American  
[brahyt-n] / ˈbraɪt n /

verb (used with or without object)

  1. to become or make bright or brighter.

    Synonyms:
    hearten , lift , gladden , cheer , lighten
    Antonyms:
    sadden , deject , darken

brighten British  
/ ˈbraɪtən /

verb

  1. to make or become bright or brighter

  2. to make or become cheerful

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • brightener noun
  • rebrighten verb
  • unbrightened adjective

Etymology

Origin of brighten

First recorded in 1250–1300, brighten is from the Middle English word brightnen. See bright, -en 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Cranberry sauce really brightens up a Sides-giving spread, and the sweet-tart flavor profile is completely different than any of our other side options.

From Salon

“The basis of both is you’re really just trying to understand another person and, ultimately, brighten up their day.”

From Los Angeles Times

However the picture in the service sector brightened, with morale improving once again.

From Barron's

Early risers can find the yellow glow of Saturn low in the southeastern sky as morning twilight begins to brighten the eastern horizon.

From Washington Post

Whether you’re decorating a dining room table, a mantel or a bedside table, a vase of tulips is sure to brighten up the space and bring a touch of springtime indoors.

From Seattle Times