American Dictionary

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Definition brighten in American English

brighten verb

verb
/ˈbraɪt(ə)n/
1

to start to have more color or light

Example

The sky slowly brightened.

Synonyms and related words
1.1

to give something more color or light

Example

Light colors brighten a dark room.

Synonyms and related words
Example

She frowned anxiously, then suddenly her face brightened.

Synonyms and related words
Definition brighten in American English