Definitions

1. noun

a container used to carry and store food, especially for eating at midday, typically a rectangular box with a lid made of plastic, metal, or other materials.

“She packed a lunchbox with sandwiches, fruit, and cookies for her child’s school lunch.”

2. noun

a person’s favorite or most comforting food or dish, often served at lunchtime.

“Her favorite comfort food is chicken soup from a lunchbox she had as a child.”

3. verb

to put food or other items into a lunchbox.

“Can you lunchbox some sandwiches and fruit for our picnic?”