Agreement on terms and context is critical to discussion.

(Applies to this entire thread, not just parent comment.)

... and just because this is still bothering me:

A surprisingly common form of conversational failure is when two (or more) parties are discussing some matter all with different ideas as to what is being discussed or the context of the discussion.

I'd run across a good description of that recently though I can't seem to recall where / find it presently.

It's not included in this discussion of Wiio's Laws, though there's enough other material there that's excellent guidance for communication that I'm linking it regardless:

https://jkorpela.fi/wiio.html