vi.

1. 存在[W]
   That word doesn't exist in English.

   英語中沒有這個字。

2. 生存；生活[（+on）]
   She existed only on milk.

   她只靠牛奶生存。

v.

1. have objective reality or being.
   ▸be found:

   two conflicting stereotypes exist.
2. live, especially under adverse conditions.