[Note: I've put this in 'historical' because I'm mainly interested in the pre-1968 situation, but comments on more recent practice also welcome.]
Imagine a simple single-line passing-loop. An approaching Down train would pass the Down Distant, the Down Home and then run into the Down Loop, in the process passing over the facing points which connected the Down and Up loops together. Now, some ex-L&SWR locking tables which I have seen describe those facing points as 'Down Loop Points' ( presumably because they are at the entrance to the Down Loop?), whereas in other ex-L&SWR examples they are described as the 'Up Loop Points' (presumably because that is what they provide access to when reversed?). A similar disparity exists at the other end of the loop, with the points there being described variously as the Up Loop or Down Loop points. I have even found one example (Shillingstone) where the terminology was 'changed around' during BR days - why bother?
So - was there not any sort of standard terminology for such points? Was it simply left to the 'whim' of the person compiling the table?