above your head, usually in the sky

overhead cables 高架电缆

A flock of geese flew overhead. 一群大雁从空中飞过。

This room needs overhead lighting (= lights in the ceiling). 这个房间需要有顶灯。

relating to the overheads of a business

One way of increasing profit margins is to cut overhead costs. 增加利润额的一个方法是减少管理费用。

a transparent sheet used for showing text or pictures with an overhead projector

the regular and necessary costs, such as rent and heating, that are involved in operating a business

We need to reduce our overheads. 我们需要减少经常性开支。

Many businesses are moving out of New York because the overheads there are so high. 许多企业正迁出纽约，因为那里的运营成本太高了。