I had a first hand demonstration of how regional differences occur. I am from Birmingham, Alabama and in that area we refer to the green thing you use to water you lawn as a "hose pipe". I used this term once while in another area or the US and was laughed at because they quickly informed me that it was just a "hose".

Years later I was renting a house in The Netherlands from a couple that originally came from Birmingham, England. We were reviewing an inventory of items to be left with the house. While reviewing the list all of a sudden I came across "hose Pipe" in the inventory. I chucked to my self and ask about the entry. It seems that's the way they say it there. Birmingham Alabama was settled by a lot of iron and steel people from Birmingham England.