I don't think I was ever asked to draft a 'single hung' window in my entire career. Yet, all anyone ever wanted was a single hung window. But I knew that.
Mullions is another one that gets misused. So many times I was asked to put mullions in the window.
How quickly the traditional architectural terms get misused and lost over time. After a while, everyone knows what you're talking about, even though you're refering to something different.
Are we already calling webisodes and online films TV?