Survival is the ability to continue living under difficult circumstances. There are many synonyms for the word 'survival' that can help us to better understand what it means to endure hardships. Some of the words include 'endurance,' which refers to the ability to withstand pain or suffering over a long period of time. 'Persistence' is another synonym that emphasizes the importance of not giving up despite obstacles. 'Resilience' is another word that describes the ability to recover from adversity quickly. Lastly, 'tenacity' refers to the strength of determination and the unwillingness to give up, no matter what. These synonyms all describe different aspects of what it means to survive against all odds.