to remove something that is hanging and then hang it again

I rehung the door so that it opened outwards.

I had to rehang my muffler to keep the cold out. 我不得不重新系好围巾，以防寒气侵入。

to change the arrangement of the paintings or pictures on the walls of a room

The only change the new curator made was to re-hang some of the paintings.

A group of artists was invited to rehang the museum's permanent collection. 邀请了一群艺术家重新悬挂博物馆的永久藏品。

to remove wallpaper from a wall and then hang it on the wall again

She told the decorators that they would have to re-hang the Japanese wallpaper.

I'd like to re-hang the wallpaper where the door used to be. 我想在原来开门的地方重新贴上墙纸。

a change in the arrangement of the paintings on the walls of a room or building

She was organizing a rehang of the museum's collection. 她正在组织重新悬挂博物馆的藏品。

The re-hang will allow more works to be exhibited.