<s>Human: 给出一个英文单词并提供其定义。
apple
</s><s>Assistant: **apple** is a noun that refers to a round fruit with a red, yellow or green skin and a white inside flesh. The fruit is typically sweet and crunchy and is one of the most popular fruits in the world. Apples are also widely used in culinary preparations, including desserts, pies, and sauces.
</s>