Pumpkin
Part of speech: noun
Definition: A domesticated plant, Cucurbita pepo similar in growth pattern, foliage, flower, and fruit to the squash or melon. The round yellow or orange fruit of this plant. The color of the fruit of the pumpkin plant A term of endearment for someone small and cute.
Watermelon
Part of speech: noun
Definition: A plant of the genus Citrullus, a variety of melon.The fruit of the watermelon plant, having a green rind and watery flesh that is bright red when ripe and contains black pips.An environmentalist with socialist leanings (from the similarity to the fruit, being green on the outside, and red on the inside).