Definition of brighten in English:


Line breaks: bright¦en
Pronunciation: /ˈbrʌɪt(ə)n


1Make or become more light: [no object]: most of the country should brighten up later [with object]: the fire began to blaze fiercely, brightening the room
More example sentences
  • This will ensure that natural light can enter and brighten up your rooms.
  • And in this ordinary day, the sun suddenly begins to brighten up the blue skies.
  • The other members quickly agreed, and the light in the room began to brighten.
make/become bright, make/become brighter, light up, lighten, throw/cast/shed light on, illuminate, illumine, irradiate
1.1 [with object] Make (something) more attractively colourful: daffodils brighten up many gardens and parks
More example sentences
  • A host of colourful balloons brighten the skies over Canberra during the week-long festival.
  • Only the edge of the canvas is brightened by colour.
  • They arrived, a swirl of colour, brightening this black and white movie that silenced our lives.
enhance, embellish, make more attractive, enrich, freshen;
dress up, ginger up, add some colour to, prettify, beautify, grace
informal jazz up, zhoosh (up)
1.2Make or become happier and more cheerful: [no object]: Sarah brightened up considerably as she thought of Emily’s words [with object]: she seems to brighten his life
More example sentences
  • Maybe, to brighten up, all this school needs is a bit more poetry.
  • A breath of fresh air, a quick lunch-hour walk or an office with a window all seem to brighten up our day.
  • Here's a story of mischief and mayhem to brighten up your Monday morning lecture.
cheer up, buoy up, perk up, wake up, rally;
gladden, enliven, animate, invigorate, hearten, rejuvenate, uplift, encourage, stimulate, arouse, raise someone's spirits, give someone a lift
informal buck up, pep up


Old English (ge)beorhtnian.

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Pronunciation: dəˈmôrəˌlīz
cause (someone) to lose confidence or hope; dispirit