Melon
Part of speech: noun
Definition: Any of various fruits of the family Cucurbitaceae grown for food, generally not including the cucumber. A light pinkish orange colour, like that of some melon flesh. Breasts. The head.
Part of speech: adjective
Definition: of a light pinkish orange colour, like that of melon flesh.
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).