Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “brighten”

brighten

verb [I or T] (LIGHTER)    /ˈbraɪ.tən/ US  /-t̬ən/
to (cause to) become lighter: The room was small and dark, without so much as a ray of light to brighten the gloom. It was rainy this morning, but it brightened up (= the sun started shining) after lunch.Emitting and casting light
(Definition of brighten verb (LIGHTER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of brighten

More definitions for “brighten”

Definitions of “brighten” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More