Technical acronyms?

Question

10 points for anyone who knows what WC1A means

Answer 1

well the only one thing i came up with is

"i went to the WC (water circle) and made number one (pee) and i Aced it "

:P

Answer 2

Post code for the borough of Camden, London Eng..

Answer 3

'Rasin' does not appear in the Microsoft Online dictionary. 'Raising' does; to rase (I prefer 'raze') is to level a structure.

Apparently it is not spelled correctly.

Answer 4

It must be specific to a certain company and not a generally known acronyms.  Do you know what ATM stands for?  Hint: it's not Automatic Teller Machine.