What is the meaning of exit interview, seperation interview, termination interview?

An exit interview is what takes place between you, your
manager, and someone from HR when you are voluntarily leaving your job to take a job at
a different company.  It usually involves answering questions about your experiences
with the company, your reasons for leaving, and what, if anything, could they have done
differently to change your mind about leaving your job.

A
separation interview is similar to an exit interview in that your leaving your position
is usually voluntary except unlike an exit interview you aren't leaving the company.  In
this situation you are often transferring to the same position in a different department
or a different position in a different department.  During this interview you usually go
over what work you are handing off to whom, and why you are leaving the
position.

A termination interview is what takes place
between, your manager, and someone from HR when you have involuntarily been terminated
from your job be it due to lay offs or being fired.  During this interview they give you
your termination letter, explain what, if any, your severance package is, and go over
the reasons why your position is being terminated.