| life span(noun, expression, life, age, life course) |
| existance(noun, life, age, life course) |
| survival(noun, life, age, endurance, durability) |
| being(noun, life, age, life course, existance) |
| course(noun, life, age, life course, existance) |
| gerontology(noun, medicine, study, science) |
| longness(noun, course, life, existence) |
| oldness(noun, course, life, existence) |
| career(noun, life, age, life course, existance) |
| continuance(noun, life, age, life course, existance) |
| cycle(noun, life, age, life course, existance) |
| days(noun, life, age, life course, existance) |
| endurance(noun, life, age, life course, existance) |
| epoch(noun, life, age, life course, existance) |
| era(noun, life, age, life course, existance) |
| expectancy(noun, life, age, life course, existance) |
| extent(noun, life, age, life course, existance) |
| generation(noun, life, age, life course, existance) |
| history(noun, life, age, life course, existance) |
| length(noun, life, age, life course, existance) |