A Pumpkin

1. A domesticated plant, in species Cucurbita pepo, similar in growth pattern, foliage, flower, and fruit to the squash or melon.
2. The round yellow or orange fruit of this plant.
3. (uncountable) The color of the fruit of the pumpkin plant.

pumpkin:

4. (Australia) Any of a number of cultivars from the genus Cucurbita; known in the US as winter squash.
5. (US) A term of endearment for someone small and cute.