1. make or become more light: "the fire began to blaze fiercely, brightening the room"Similarmake/become brightmake/become brighterlight uplightenthrow/cast/shed light onilluminateillumineirradiate
▪ make (something) more attractively and cheerfully colorful: "daffodils brighten up many gardens and parks"Similarenhanceembellishmake more attractiveenrichfreshendress upginger upadd some color toprettifybeautifygraceinformal:jazz upzhoosh (up)