What does "leftover" mean? Is it only used when describing food?
The word "leftover" is generally used to describe anything that is left behind or that remains after everything else has been used or eaten. While it is usually used to talk about food, it can be used to describe anything where you have extra after using it. Ex: I used to cook everyday but now I'm so busy we sometimes eat leftovers. Ex: She thought we would need more fabric but we just use what was leftover. Ex: There are some leftovers in the fridge if you're hungry. Ex: Most of these buildings have features that are leftovers from the past.