A box lunch is food, for example sandwiches, which you take to work, to school, or on a trip and eat as your lunch. An individually portioned lunch packed in a small box. a lunch (=a meal eaten in the middle of the day) that you take to school or work with you in a lunchbox British Equivalent: packed lunch
{i} packed lunch, light lunch packed in a box to be eaten in a different location; obento, Japanese meal packed in a lacquer box which is divided into sections