1
adjective (keiyoushi)
light;bright;well-lit;well-lighted
ダイヤは明るく光った。
The diamond shone brightly.
2
adjective (keiyoushi)
bright (colour)
明るい色が私たちの目を引いた。
The bright colors arrested our eyes.
3
adjective (keiyoushi)
cheerful;bright;spirited;sunny (e.g. disposition)
あの子供は明るい微笑でみんなをひきつける。
The child captivates everyone with his sunny smile.
4
adjective (keiyoushi)
bright (future, prospects, etc.);rosy;encouraging;promising
5
adjective (keiyoushi)
knowledgeable (about);familiar (with);well versed (in);well acquainted (with)
as ...に明るい
君はなかなか地理に明るいな。
You're pretty good with the lay of the land.
6
adjective (keiyoushi)
fair (e.g. politics);clean;impartial
Other forms
明い 【あかるい】 (search-only kanji form)