Meaning is kind of a tricky thing. Who decides what a word means and when? Has a dictionary ever defined the complex web of emotions tied to that or any other

Meaning is kind of a tricky thing. Who decides what a word means and when? Has a dictionary ever defined the complex web of emotions tied to that or any other hateful slur? Can the OED tell you what it feels like for a person of color to hear it, even in supposedly clinical circumstances?