Translation of "brighten" - English-Japanese dictionary

brighten

verb uk /ˈbraɪ·tən/ us /ˈbrɑɪ·t̬ən/

to become lighter or more colourful, or to make something become lighter or more colourful

明るくなる(する), 鮮やかになる(する)
A picture or two would brighten up the room.

(Translation of “brighten” from the Cambridge English–Japanese Dictionary © Cambridge University Press)