What is the difference between the "next one" and just "next"?
Let's suppose we have a lot of people in a queue, and as one person comes, someone says "the next one is white, tall, has black eyes, is slim... etc". So I understand I needed to use "one", because I'm describing someone or something.
Now, if it was just people coming in a queue, I could just say "next", no need to use one, since I'm not describing it or something.
Did I get something right?