the fact of being able to survive (= to continue to live or exist, especially after coming close to dying or being destroyed)

It is one of the most treatable of cancers, with a five-year survivability rate of 90 percent if caught early. 它是最可治疗的癌症之一，如果及早发现，百分之九十的人可有五年的生存率。

These weapons can greatly increase the survivability of the troops that use them. 这些武器可以大大提高装备部队的生存率。

the possibility of escaping from a particular thing without being killed or seriously hurt

Each of the cars tested got stars for crash survivability, four for the best and one for the poorest. 每辆接受测试的汽车都获得了碰撞存活率的星级，四颗星代表最好，一颗星代表最差。

Both these events demonstrate the survivability of earthquakes when societies prepare correctly for them. 这两起事件都证明了在社会为地震做好正确防范的情况下，人在地震时可以达到较高的逃生率。