a matter of life and death Meaning If something is a matter of life and death, its extremely important and it could involve someones survival. For example Education about HIV and AIDS is a matter of life and death. If people arent told to protect themselves with condoms, they could die from the disease. Getting someone to hospital quickly after an accident or a heart attack is a matter of life and death. Just a few minutes can make all the difference. #Idiom_of_the_Day ▬▬▬▬▬▬▬▬▬▬▬▬ ➠@PhrasalCards ➠@SlangWords ➠@IdiomsLand ➠@Vocabulix ➠@GrammarCards ➠@EnglishGate ➠@StoryPage 5.1K views15:30