Peanut (noun)

1. A small, round, edible seed that is enclosed in a hard shell, typically eaten as a snack or used in cooking.
2. A plant that produces such seeds and is widely cultivated as a food crop.

Origin:

From the african word pindi, which is the word for peanut in the kongo language.

Examples:

1. She ate a handful of peanuts.
2. He roasted peanuts at the fair.
3. The peanuts were a staple food in the country.
4. She made peanut butter from the peanuts.
5. The plant was a type of peanut.