Quote Originally Posted by FossilHunter View Post
In the US, Alumni would be a former student or graduate of a school, college, or university. Wikipedia suggests that it’s more or less synonymous with “old boy” in British English though it’s use may be a little more expansive as it is used for just about any type of school.

Based on your previous post, using American terminology, you would be considered an alumnus of the RAC and I suppose I would be and old boy of San Diego State University.
I think your terminology would not be quite correct for Universities in the UK. I think we would say that we graduated from X university rather than being an "Old boy"!

So imagine you are attending a gathering of fairly ancient(old) ex university students who had qualified from assorted UK universities and in the dim and distant past attended some very smart UK school as well. So there will be several assorted ties on view which one can then also add assorted military ties on show too. I found these events rather trying, but identifying the ties has made the time pass slightly faster, on more than one occasion!