bainsey wroteWe're taught to use "endline." I've never known anyone to be confused by it, and even if they are, that's not on us. Who says we're supposed to comply to them, anyway?
That's true and if I'm talking with officials, I'm going to talk like an official. But anyone else, I'll use the common terms. Like Camron said, it doesn't convey any misinformation. It's not the same as calling a rebounding foul that we would call a push an "over the back" foul. Using that common term implies that it's illegal to go over someone's back. Calling the end line the baseline is just a different naming convention.