brighten

verb

bright·​en ˈbrī-tᵊn How to pronounce brighten (audio)
brightened; brightening ˈbrīt-niŋ How to pronounce brighten (audio)
ˈbrī-tᵊn-iŋ
Synonyms of brightennext

transitive verb

1
: to make bright or brighter
you brightened my day
2
: to enhance or intensify the flavor of (food) especially by adding an acidic element (such as citrus juice or vinegar)
Crisp lemon slices brighten smoky bacon and rosemary-infused trout.Melissa Roberts-Matar
brightener
ˈbrīt-nər How to pronounce brighten (audio)
ˈbrī-tᵊn-ər
noun

Examples of brighten in a Sentence

He brightened the picture on the television. Flowers can brighten any room. The good news brightened her mood. The sky brightened after the storm. Business prospects brightened last month. Her face brightened in relief when she heard that he was not hurt.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Going farther west, however, brightens the sky even more and anywhere west of a line from approximately central Michigan, going south through east-central Kentucky to the Gulf Coast will be bathed in full daylight. Joe Rao, Space.com, 24 Apr. 2026 As a professional online shopper, nothing brightens up my day quite like scoring a budget-friendly haul. Clara McMahon, PEOPLE, 24 Apr. 2026 Red cabbage pairs especially well with acidic dressings like lemon juice or apple cider vinegar, which also helps soften its slightly bitter edge and brighten its color. Lauren Panoff, Verywell Health, 24 Apr. 2026 The fresh and light menu brightens up the day with dishes featuring local vegetables and fish from the Malaga coast, as well as old-school resort favorites like a fabulous club sandwich. Condé Nast, Condé Nast Traveler, 23 Apr. 2026 See All Example Sentences for brighten

Word History

First Known Use

14th century, in the meaning defined at intransitive sense

Time Traveler
The first known use of brighten was in the 14th century

Cite this Entry

“Brighten.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brighten. Accessed 27 Apr. 2026.

Kids Definition

brighten

verb
bright·​en ˈbrīt-ᵊn How to pronounce brighten (audio)
brightened; brightening ˈbrīt-niŋ How to pronounce brighten (audio)
-ᵊn-iŋ
: to make or become bright or brighter

More from Merriam-Webster on brighten

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster