1 [U] the state of existing 存在:
This is the oldest human skeleton in existence.这是现存的人类骸骨中年代最久远的。How did the universe come into existence ?宇宙是怎么形成的?
2 [sing] a way of living, especially when it is difficult 生活方式,生活(尤指艰难的):
They lead a miserable existence in a tiny flat in London.他们住在伦敦一套狭小的公寓里,过着贫困潦倒的日子。