月亮在英语中称为"moon"。这个词来源于古英语"mona"或"monen"，最初指月亮。举个例子，你可以说：

The moon is full tonight. (今晚的月亮是满月。)

I love watching the moon on a clear night. (我喜欢在晴朗的夜晚观看月亮。)

The moon is a natural satellite of the Earth. (月亮是地球的天然卫星。)