Just recently, I attempted to answer a question involving "whole numbers", but discovered that my long-held assumption (that they're the same as the integers), is not universal.
[In fact, it seems I owe a retraction for whenever I've snickered as a result of people claiming there are no "whole number" solutions to $a^n+b^n=c^n$ when $n>2$.]
Question: When it comes to the "whole numbers", who uses which definition?
I'm thinking geographically. E.g., since I've always equated whole numbers and integers, perhaps it's an Australian thing (or perhaps it's a "me" thing).
Question: Are there any rules-of-thumb as to who uses what definition?
This matters, because when I'm teaching, I sometimes say "whole numbers" while meaning "integers", and expect others to arrive at the same conclusions as me.