The term 'Stay Alive' can be broken down into three crossword solutions: EXIST (5 letters), GETBY (5 letters), and SUBSIST (7 letters). EXIST means to have being, to have life or reality. Getby is a slang term meaning to manage to survive or cope with a difficult situation. SUBSIST means to maintain oneself, especially at a minimal level. Together, these three words suggest that staying alive requires one to EXIST, get by, and SUBSIST in order to survive.