Stenotype is a special kind of machine that helps people write things down very quickly. It looks like a typewriter and has different buttons for different letters and sounds. When you press one of the buttons, it makes a special code for the sound or letter you wanted to write down. The code is like a secret language that only people who know how to use the stenotype machine can understand. The code is very fast and people who use stenotype machines can write down things much quicker than people who just use a regular keyboard.