Peanuts are legumes and are part of the bean family, Fabaceae. It's a New World crop, and like tomatoes, squash, and other beans, eventually traveled to Africa and other destinations.

Culinarily speaking, like me, they're nuts. The part we eat is actually a seed.

They're legumes - like beans and lentils.

I think they're legumes. (That may be the first time I've gotten to use that word with a straight face.)

It's a fruit. But in terms of where it fits into one's diet, peanuts are a fat and a protein rather than a fruit/vegetable.

It's technically a fruit.