Would anything be gained by this assimilation of expressions?—
If you try to make them all fit into one definition and then one doesn't, you will try to force it in artificially, or exclude it artificially. And what's the point of that? Why would this be useful? - why is the craving for generality so strong? - one potential answer: there is an instinct to treat philosophy as science (to generalize and theorize) when philosophy is not like science