The only meaning in the world is the meaning we give it. "Meaning" is a completely subjective property of the world.
Proof lies in the fact that there is no measurable, objective matter nor energy that is "meaning."
Before someone tries to argue that this statement is inconsistent...because if there is only subjective meaning then my statement only has subjective meaning...don't bother. It's not logically inconsistent with itself, and saying that this statement makes itself "meaningless" is correct (or an equivocation fallacy depending on what you mean by "meaning"). All language is full of subjective meaning that we as people give to it. Also, stating this does not make the statement inconsistent (which is what happens when people say, "All truth is subjective" or "There is no such thing as truth," these arguments are logically inconsistent with themselves).
Just because there is no inherent, objective meaning in the world does not at all mean that the world does not possess objective laws and such. Gravity still works...the only part that is subjective about it is what meanings we come to place on it. Gravity is not inherently morally wrong, nor is it inherently "awe-inspiring," nor is it inherently beautiful or the like. Even things like my avatar are not inherently awe-inspiring...awe is something that comes from the human mind, and is not an objective property of the world.
Many object to this because they feel life would be boring, scary, etc if there is no meaning in the world. However, I never said there is NO meaning in the world, I just said there is no OBJECTIVE meaning in the world. You make your own meaning. Feel free to make it.