- 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 roomMore 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.
- 1.1 [with object] Make (something) more attractively colourful: daffodils brighten up many gardens and parksMore 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.
- 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 lifeMore 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.
Old English (ge)beorhtnian.