Get your jargon right!

This thread is a tribute to my obsessive-compulsive disorder insofar as correct terminology is employed.

For those of you who still remember high school mathematics, I am sure you would have come across GRAPHS. And in a typical 2-dimensional graph, you will always have a vertical axis and a horizontal axis, correct? Now, what do you call the vertical and horizontal axes, respectively (yes, this is the part where all of you start raising your hands in dire enthusiasm)?

Okay, hands up, all of you who said:
"The horizontal axis is the x-axis, and the vertical axis is the y-axis"

WRONG, WRONG, WRONG.

And why is it wrong? Because the horizontal axis could very well have been, say, the t-axis, with the vertical axis being the x, y, z, or any other dimensional axis (this is known as a displacement vs. time graph in physics). Or just about any combination (any of you remember dy/dx?...yep), not just x-y.

The horizontal axis is known as the ordinate, and the vertical axis is known as the abscissa. So, in a graph of x vs. t, t would be the ordinate, and x would be the abscissa. I actually knew these terminologies from high school, but it took my Dynamics lecturer at university - Dr. Janusz Maciej Krodkiewski - to hammer it into my vocabulary.

And for those of you who did mathematics at university and got this wrong, you ought to be shot.

Hang on... I am not quite done yet...

Okay, let us move on to music. I have often heard people refer to the "G" of a scale or and "F" of a scale, etc. Strictly speaking, that is also wrong by musical terminology, and is about as sacrilegious as the "x-y" terminological inexactitude. What is a "G" of a musical scale? The speaker obviously assumes that the reference scale is C-Major, and that the note in question is the 5th note from the scale's key. But what if the scale in question was not C-Major (which, there is a 1/12 probability of it being so)?

NO, NO, NO.

The correct terminologies for the notes, measured from any given key, are as follows:

First note: Tonic
Second note: Super-tonic
Third note: Mediant
Fourth note: Sub-dominant
Fifth note: Dominant
Sixth note: Sub-mediant
Seventh note: Leading (or Sub-tonic)

So, "G" in the C-Major scale is the Dominant note, but in the G-Major scale is the Tonic note.

My OCD rant for today. I think I'm done. Have a pleasant weekend.