n.

1. 面积[C][U]
   The city covers an area of 15 square kilometers.

   该城市的面积为十五平方公里。

2. 地区，区域[C]
3. 场地，区[C]
   There is a parking area over there.

   那儿有一个停车场。

4. 领域，范围，方面[C]
   Mathematics is my special area.

   数学是我的专业。

5. 庭院[C]
6. 【英】（地下室等的）采光井[C]

n.

1. a region or part of a town, country, etc.
   ▸a space allocated for a specific use:

   the dining area.
   ▸a part of an object or surface.
2. a subject or range of activity.
3. the extent or measurement of a surface.
4. a sunken enclosure giving access to a basement.