If it's the "-" on the keypad, I call it "minus". If it's the key on the main keyboard, I call it "dash". I do it a little differently for the character (versu

If it's the "-" on the keypad, I call it "minus". If it's the key on the main keyboard, I call it "dash". I do it a little differently for the character (versus the key). That's probably more important because I'm almost always referring to the character, not the key. I call that a "minus", "hyphen", or "dash" depending on the context it's being used in.