scrap
Definitions
A small piece or amount of something, especially one that is left over after the greater part has been used.
Waste material, such as metal, suitable for being reprocessed.
To discard or remove from service as being no longer useful or desirable.
Examples
The mechanic decided to sell the old car for scrap metal.
I found a scrap of paper with a phone number written on it in my pocket.
They had to scrap the original plans because the budget was cut.