Designations for Project Manager

Hi,

I would like to seek opinions and guidance from all on the topic above.

In my organisation, we have a unit that is called Project Management Services. What we do is reflected directed in the name of the unit.
Currently, all members of this unit is called Project Managers.
My questions are:
1. Is are there any ‘sexier’ way to designate the different levels of Project Managers, beside the obvious ie. PM and Senior PM.

2. I have hear of the designation called Project Coordinator and Project Administrator. What is the difference here?

I really would appreciate some feedbacks and opinions.

Thanks