exist/existence

exist /iɡˈzist/ vi. 1.存在：Do you believe that fairies exist?你相信真有神仙吗? 2. 生存：Man cannot exist without air. 没有空气，人就不能生存。 

existence /iɡˈzistəns/ n. ［u］ 1.存在：Men’s social existence determines their consciousness. 人们的社会存在决定他们的意识。Many people question the existence of God. 很多人质疑上帝的存在。2.生存，生活；一生：The patient’s very existence depends on the doctor’s skill. 病人的这条命就取决于大夫的技术了。I’ve never heard anything so silly during my whole existence. 在我整个一生中从来没听到这么傻的事情。(be) in existence存在：The theatre company that they started is still in existence today.他们创建的影剧公司现在还在。come into existence 开始存在，成立：Modern cosmology believes the Universe to have come into existence about fifteen billion years ago. 现代宇宙学说认为宇宙大约在150亿年前就开始了。