A pumpkin is a round, orange type of squash that grows on a plant also called a pumpkin. It’s the raw material for a jack-o’-lantern. Cook one up in a pie or name your precious poodle after it.
Pumpkins are most commonly harvested in the fall, and they're often associated with Halloween, when people traditionally hollow them out and carve faces on them. Pumpkin is delicious in sweet and savory foods, and pumpkin pie is a popular Thanksgiving dessert in the US. The word was originally pompone, from the Greek root pepon, "melon," or literally, "cooked by the sun."