1. To have a lower rank or position than someone in a business, government, or military hierarchy. Well, I technically rank below Sarah, but we operate more like equals in the office. He ranks below you, so he had better start following your orders.

2. To be considered less valuable, significant, or important than another person, thing, or group of people or things. I personally believe that trying to maximize the profits of corporations ranks below preserving the wellbeing of our fellow citizens. His music is very popular across the globe, even though he tends to rank below most "serious" musical artists.

3. To consider someone or something to be less valuable, significant, or important than another person, thing, or group of people or things. In this usage, a noun or pronoun is used between "rank" and "below." It's still very well-written, but I would probably rank it below her other work. I have to rank the driver below others I've had through your service. He was very unprofessional.