Pumpkin (noun)

1. A large, round, orange-yellow fruit with a thick rind, typically used for decoration or as a food source.
2. The plant that produces this fruit, which belongs to the gourd family.

Origin:

From the greek word pepon meaning "large melon" which was later adapted to pumpion in old french and pumpion in middle english.

Examples:

1. She carved a pumpkin for Halloween.
2. The pumpkin pie is a traditional dessert for Thanksgiving.
3. Pumpkin is a good source of vitamin A and potassium.
4. The farmer grew many different varieties of pumpkins.
5. Pumpkin seeds are a good source of protein and healthy fats.