1. to have in mind as one's purpose or intention; intend: I meant to compliment you on your work.
As for this, I think people have a variety of meanings that they apply to their lives. All of us have conscious and unconscious intentions of what we would like to accomplish, and these cannot be summarized. The will of God precedes all of these intentions, and one can find oneself at a loss if one fails to listen to their vocation, but there is no uniform way to talk about the meaning of life through this definition- it would be different for each person, and many things are alive without having minds as such.
2. to intend for a particular purpose, destination, etc.: They were meant for each other.
Again, the meaning for which each living thing came into being is unique to it. One might say that all living things strive toward the greater balance and intention of the universe, such as that might be.
3. to intend to express or indicate: What do you mean by liberal?
Asking for a clarified definition of life might actually be the most difficult question to come to a consensus on. From a mechanistic, materialistic point of view, nothing is really alive- everything is just a collision of particles interacting in a surprisingly interesting way. From a panentheistic point of view such as mine, everything that exists has life, from creatures to solar systems.
4. to have as its sense or signification; signify: The word freedom means many things to many people.
What one implies by the term life probably depends on their answer according to definiton three.
5. to bring, cause, or produce as a result: This bonus means that we can take a trip to Florida.
Life causes things to have motion, to interact with other living things and to change the world around them.
6. to have (certain intentions) toward a person: He didn't mean you any harm.
I like to think that life has generally good intentions, if not always considerate. The greater pattern of life in the universe is a beautiful one, filled with many awe-inspiring and elegant iterations.
7. to have the value of; assume the importance of: Money means everything to them. She means the world to him.
This only applies to thoae living things which have some measure of consciousness, and I can only imagine that it varies from creature to creature. I've certainly known some people who did not value life at all, theirs or others'.