How do you even define free will? It seems like a poorly defined concept in general, and is more or less meaningless. The notion of free will that people talk about seems to be little more than a glorified form of determinism and randomness.
It certainly isn't meaningless, and there are several possible meanings. You mention one of them yourself.
Also, all words are poorly defined, since we define words by other words (which are themselves subject to the same problem) or by pointing to things, which is a poor way to define things.