1. the condition of being subject to death
2. the number of deaths in a particular time or place
Usage: often used in statistics
3. human nature as subject to death
Usage: philosophical or literary

Examples

• The pandemic increased mortality rates worldwide.
• Infant mortality has decreased significantly in developed countries.
• The philosopher reflected on human mortality and the meaning of life.
• Cancer mortality varies greatly between different types of the disease.
• The war memorial reminded visitors of their own mortality.
• Medical advances have helped reduce mortality from heart disease.
• The poet wrote about the fragility and mortality of all living things.