staple

noun
UK /ˈsteɪ.pəl/
US /ˈsteɪ.pəl/

A staple is a small piece of metal that holds papers together.

She used a staple to attach the pages of her report.


OTHER MEANINGS

2. A staple is a basic food that people eat often.

Rice is a staple in many countries.

3. A staple is a main or important product.

Tourism is a staple of the local economy.

4. As an adjective, staple means main or most important.

Bread and milk are staple foods in many homes.