noun

 

animals/plants living things and their activities

human/marine life

 

person's existence the existence of a person

How many lives will be lost to AIDS?

 

time the time between a person's birth and their death

I'm not sure I want to spend the rest of my life with him.

 

way of living a way of living

You lead an exciting life.

 

activity energy and activity

She was always bubbly and full of life.

 

active period the amount of time that a machine, system, etc exists or can be used

Careful use will prolong the life of your machine.