What is life? What does it mean?

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What is life? What does it mean to be alive?
You are alive, and so am I. Most people have an intuitive understanding of what it means for something to be alive.
What is it that defines life?
How would you define life? Would you add something to the list of properties above, subtract something, or use an entirely different definition. Can you think of exceptions or special cases that aren’t covered by the list? Share your ideas in the comments section below!