The word 生还 is formed by combining two characters: 生, meaning "to live" or "life", and 还, meaning "to return" or "to come back". Conceptually, it paints a vivid picture of a person "returning to life" from a dire or fatal situation, such as a disaster, battle, or great danger. This figurative return from the brink of death directly embodies the core meaning of the word: to survive or be rescued. Thus, its formation is a logical and intuitive semantic blend, where the action of returning is applied to the state of being alive, creating the specific notion of surviving an ordeal.