pumpkin

Concise Oxford English Dictionary © 2008 Oxford University Press:
pumpkin/ˈpʌmpkɪn/

▶noun

• 1 a large rounded orange-yellow fruit with a thick rind and edible flesh.

• 2 a plant of the gourd family bearing pumpkins, native to warm regions of America. [Cucurbita pepo and related species.]

• 3 Brit. another term for squash2.

– origin C17: alt. of earlier pumpion, from obs. Fr. pompon, via L. from Gk pepōn (see pepo).