n.[C]

1. （来往于沙漠的）商队，香客队伍，移民队伍
2. （移动着的）车队
   a caravan of Arab merchants laden with spices and Oriental silks

   满载香料和东方丝绸的阿拉伯商人队伍

3. 有篷卡车（或拖车）；房车
   To save their hotel expenses, they drove a caravan and toured the United States.

   为了节省住旅馆的费用，他们夫妻开了一辆房车环游美国。

4. 【英】（可用牲口或汽车拖曳的）活动房屋

n.

1. Brit. a vehicle equipped for living in, usually designed to be towed.
2. N. Amer. a covered motor vehicle with living accommodation.
3. historical a group of people travelling together across a desert in Asia or North Africa.