Regular Is A Ordinary Station With Trains Stopping Here
Like Faridabad FDB
Junction Is A Station Where A Train Can Interchange The Route
For Eg:TPJ is a Junction.It is the the starting point for many routes like Chord Line(in SR)Main Line(in SR)TPJ-KRR Route.
Terminus...
more... Is A Station in which Trains Originate And Terminate There and No Trains Halt.
Bandra Terminus BDTS
Central Is A Station Situated In The Centre Of A City
Mumbai Central BCT
Halt Station Is A Very Small Intermeditate Station To Facilitate Crossing Of Trains etc
Like Vellur Halt VER