n.

1. 傘，雨傘
   She sat under a striped umbrella.

   她坐在一把條紋傘下。

2. 保護傘，庇護
   The new country was formed under the political umbrella of the United Nations.

   這一新國家是在聯合國的政治保護下建立起來的。

3. 防空火網
4. （包含許多組成部分的）傘形結構；網

n.

1. a device consisting of a circular fabric canopy on a folding metal frame supported by a central rod, used as protection against rain.
2. a protecting force or influence.
   ▸a screen of fighter aircraft or anti-aircraft artillery.
3. [usu. as modifier] a thing that includes or contains many different parts:
   an umbrella organization.
4. Zoology  the gelatinous disc of a jellyfish, which it contracts and expands to move through the water.